URGENT: WILL MARK BRAINLIEST

Answer: Its simple you just need to use the PEMDAS

Step-by-step explanation: PEMDAS means you need to use () or [] the exponent  then - then divide then + then -

do it step by step to dont mass it up do it in order starting from () and so on

Answer:

The 3% milk quantity to be mixed is 15 liters and the the 15% cream quantity to be mixed is 5 liters

Step-by-step explanation:

The question is

Milk and cream contain different percents of butterfat. How much 3% milk needs to be mixed with how much 15% cream go give 20 L of 6% cream?

Let

x -----> the 3% milk quantity to be mixed

y -----> the 15% cream quantity to be mixed

we know that

[tex]3\%=3/100=0.03[/tex]

[tex]15\%=15/100=0.15[/tex]

[tex]6\%=6/100=0.06[/tex]

[tex]x+y=20[/tex]

[tex]x=20-y[/tex] -----> equation A

[tex]0.03x+0.15y=0.06(20)[/tex]

Multiply by 100 both sides

[tex]3x+15y=120[/tex] -----> equation B

substitute equation A in equation B and solve for y

[tex]3(20-y)+15y=120[/tex]

[tex]60-3y+15y=120[/tex]

[tex]12y=120-60[/tex]

[tex]y=60/12[/tex]

[tex]y=5\ l[/tex]

Find the value of x (equation A)

[tex]x=20-5=15\ l[/tex]

therefore

The 3% milk quantity to be mixed is 15 liters and the the 15% cream quantity to be mixed is 5 liters

Answer: Angle Q= 123

Step-by-step explanation:

4x+1+9x-3=180

X=14

9(14)-3=123

The measurement of angle Q is 123 degrees if angle P and angle Q are supplementary angles.

When two lines or rays converge at the same point, the measurement between them is called a "Angle."

It is given that:

Angle P and angle Q are supplementary angles. if angle P measures 4x + 1 and angle Q measures 9x -3,

As we know the sum of the supplementary angles is up to 180 degrees

Angle P + Angle Q = 180

4x + 1 + 9x  - 3 = 180

13x - 2 = 180

13x = 180 + 2

13x = 182

x = 182/13

x = 14

The measurement of the angle Q = 9x - 3

The measurement of the angle Q = 9(14) - 3

The measurement of the angle Q = 126 - 3

The measurement of the angle Q = 123 degrees

Thus, the measurement of angle Q is 123 degrees if the angle P and angle Q are supplementary angles.

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Answer:

x = [tex]\frac{y-2}{5}[/tex]

Step-by-step explanation:

Given

y = 5x + 2 ( subtract 2 from both sides )

y - 2 = 5x ( divide both sides by 5 )

[tex]\frac{y-2}{5}[/tex] = x

Answer:

x= y-2/5

Step-by-step explanation:

y=5x+2

y + (-2) = (5x+2) + (-2)

y-2=5x+2-2

and then you get your answer

And by the way after you wrote for the answer y-2 it needs to be the fraction sigh and then under neath write 5

Answer:

30 units

Step-by-step explanation:

If point G is on line segment FH, then point G lies between points F and H.

Segment Addition Postulate states that given 2 points F and H, a third point G lies on the line segment FH if and only if the distances between the points satisfy the equation FG + GH = FH.

By segment addition postulate,

[tex]FG+GH=FH[/tex]

Given

FH = 4x,

GH = x,

FG = 2x + 10,

then

[tex]4x=x+2x+10\\ \\4x=3x+10\\ \\4x-3x=10\\ \\x=10\\ \\FG=2x+10=2\cdot 10+10=30\ units[/tex]

Answer:

FG=11

Step-by-step explanation:

Answer:

Hos son is alive for 525600 mins

Step-by-step explanation:

365 x 24 hrs=8760 hrs

8760 hrs x 60 min= 525600 mins

Multiplication is the process of multiplying. The number of minutes for which Martin's son is live is 525,600 minutes.

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

Given that Martin recently celebrated his son's birthday of when he turned 1 years old. Therefore, the number of minutes for which Martin's son is live is,

Number of minutes

= Number of days in a year × Number of hours in a day × Number of minutes in an hour

= 365 days × 24 hours × 60 minutes

= 525,600 minutes

Hence, the number of minutes for which Martin's son is live is 525,600 minutes.

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Answer:

The amount invested at 4% was $600

The amount invested at 7.5%  was $3,600

Step-by-step explanation:

Let

x ----> the amount invested at 4%

$4,200-x -----> amount invested at 7.5%

we know that

The total interest earned is equal to the interest earned by the amount invested at 4% plus the interest earned by the amount invested at 7.5%

Remember that

[tex]4\%=4/100=0.04[/tex]

[tex]7.5\%=7.5/100=0.075[/tex]

[tex]7\%=7/100=0.07[/tex]

so

The linear equation that represent this situation is

[tex]0.04x+0.075(4,200-x)=0.07(4,200)[/tex]

Solve for x

[tex]0.04x+315-0.075x=294[/tex]

[tex]0.075x-0.04x=315-294[/tex]

[tex]0.035x=21[/tex]

[tex]x=\$600[/tex]

[tex]\$4,200-x=\$3,600[/tex]

therefore

The amount invested at 4% was $600

The amount invested at 7.5%  was $3,600

Final answer:

Morgan invested $600 in the account with 4% interest and $3,600 in the account with 7.5% interest by setting up a system of equations and solving for both variables.

Explanation:

Calculating Investment Distribution

To find out how much money Morgan put in each account, we need to set up a system of equations. Let's designate x as the amount put into the account with 4% interest, and y as the amount put into the account with 7.5% interest. We know the total investment is $4,200, so our first equation is x + y = 4200.

Morgan earned 7% interest on the total investment. The interest from each account can be represented as 0.04x for the 4% account and 0.075y for the 7.5% account. The total interest earned is 7% of $4,200, which is $294. This gives us the second equation: 0.04x + 0.075y = 294.

To solve the system, we can use the substitution or elimination method. If we solve the first equation for y, we get y = 4200 - x. Substitute this into the second equation to get: 0.04x + 0.075(4200 - x) = 294. Now solve for x:

So Morgan invested $600 in the 4% account. Now we can find y:

Therefore, Morgan invested $3,600 in the 7.5% account.

The change in the number of gallons of water in the tank after 7 days is 35 gallons.

The water tank leaks 5 gallons of water each day. To find the change in the number of gallons of water in the tank after 7 days, we multiply the amount leaked per day (5 gallons) by the number of days (7). The expression for the change in gallons can be written as:

Change in gallons = amount leaked per day × number of days

Change in gallons = 5 × 7

Change in gallons = 35 gallons

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Final answer:

The integer representing the change in the number of gallons of water in the tank after 7 days is -35, as the tank loses 5 gallons per day.

Explanation:

If a water tank leaks 5 gallons of water each day, the total amount of water it would lose in seven days is calculated by multiplying the daily water loss by the number of days. The calculation steps are:

Determine the daily water leakage: 5 gallons per day.

Multiply the daily leakage by the number of days: 5 gallons/day × 7 days.

Calculate the total leakage over seven days: 35 gallons.

As water is being lost from the tank, the change in the number of gallons in the tank after 7 days would be represented by a negative integer, since it is a decrease in the volume of water. Therefore, the integer representing the change in the water level is -35.

Answer:

No.

Step-by-step explanation:

35(4) = 140

34(5) = 170

140 does not equal 170, therefore it is NOT TRUE

The exact value of:  [tex]3.96 \times 0.25[/tex] - [tex]\sqrt{0.0256}[/tex]  is 0.83.

Let's break down the expression:

[tex]\[3.96 \times 0.25 - \sqrt{0.0256}\][/tex]

First, let's simplify the terms:

1. [tex]\(3.96 \times 0.25\)[/tex] is the multiplication of 3.96 and 0.25.

2. [tex]\(\sqrt{0.0256}\)[/tex] is the square root of 0.0256.

Performing the calculations:

1. [tex]\(3.96 \times 0.25 = 0.99\)[/tex] (multiplying 3.96 by 0.25)

2. [tex]\(\sqrt{0.0256} = 0.16\)[/tex] (taking the square root of 0.0256)

Now, substitute these values back into the original expression:

[tex]\[0.99 - 0.16\][/tex]

Finally, subtract 0.16 from 0.99:

[tex]\[0.99 - 0.16 = 0.83\][/tex]

So, [tex]\(3.96 \times 0.25 - \sqrt{0.0256} = 0.83\)[/tex].

Complete question:

Calculate the exact value of:  [tex]3.96 \times 0.25[/tex] - [tex]\sqrt{0.0256}[/tex]

Jon makes $15 per hour and works 20 hours per week, giving him weekly earnings of $300. Over a year (52 weeks), this totals to $15,600.

The question is asking about how much Jon will earn in a year. We know that Jon makes $15 per hour and works 20 hours per week. To find out his weekly earnings, we multiply his hourly rate by the number of hours he works per week: $15 * 20 = $300.

There are generally 52 weeks in a year. So, to calculate Jon's annual earnings, we can multiply his weekly earnings by 52: $300 * 52 = $15,600.

So, Jon will earn $15,600 in a year if he continues to work at this same rate.

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Answer:

A) x>4

Step-by-step explanation:

3x>12

Divide both sides by 3

x>4

Step-by-step explanation: When you are asked to solve an inequality like the one in this problem, your goal is the same as it is when solving equations which is to get x by itself on one side.

In this problem, since x is being multiplied by 3 on the left side of the inequality, to get x by itself, we divide both sides by 3.

On the left side, the 3's cancel and we're left with x. On the right side, 12 divided by 3 is 4 so we have X > 4.

This means that A would be or answer.

Answer:

-1/4

Step-by-step explanation:

You would use rise over run:

12-11/2-6

When simplified, this is -1/4

Let 2_1/2 = 5/2.

Let t = time to fill 8 tires

(5/2)/8 = (5/2)/t

8(5/2) = (5/2)t

20 = (5/2)t

20 ÷ 5/2 = t

20 • 2/5 = t

8 seconds = t

Done.

Using the ratio of 1 tire per second, it would take an air compressor 8 seconds to fill 8 tires.

This problem requires you to use a simple ratio or proportion to find the answer. First, we begin with the known fact that it takes 2 1/2 seconds to fill 2 1/2 tires. Therefore, it takes 1 second to fill 1 tire because 2 1/2 divided by 2 1/2 equals 1.

Next, if it takes 1 second to fill 1 tire, then approximately it will take 1 times 8 or 8 seconds to fill 8 tires. So, if we use the same air compressor and assuming the tires are the same, it will take 8 seconds to fill 8 tires.

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Answer:

120cm^3

Step-by-step explanation:

4*5*6=120

Answer:

Step-by-step explanation:

Supplementary angles add up to 180 °.

x + z = 180° → x = 180° - z

180° - 42.1° = 137.9°

To find the mean absolute deviation of the number of goals scored by the hockey team, subtract the mean from each value in the data set, find the absolute value of each difference, and then find the mean of the absolute differences. For the given data set, the mean absolute deviation is 1.44.

The mean absolute deviation of a data set is a measure of how spread out the data is. To find the mean absolute deviation of the number of goals scored by the hockey team, you need to follow these steps:

For the given data set (2, 4,0,3, 4, 1, 3, 1, 1, and 5), the mean is (2 + 4 + 0 + 3 + 4 + 1 + 3 + 1 + 1 + 5) ÷ 10 = 2.4. The absolute differences from the mean are 0.4, 1.6, 2.4, 0.4, 1.4, 1.4, 1.4, 1.4, 1.6, and 2.6. The mean of the absolute differences is (0.4 + 1.6 + 2.4 + 0.4 + 1.4 + 1.4 + 1.4 + 1.4 + 1.6 + 2.6) ÷ 10 = 1.44.

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To find the mean absolute deviation of the number of goals scored by the hockey team, calculate the mean of the data set and find the absolute deviation of each data point. Then, calculate the sum of the absolute deviations and divide by the total number of data points.

To find the mean absolute deviation of the number of goals scored, we need to follow these steps:

By following these steps, you can calculate the mean absolute deviation of the number of goals scored by the hockey team.

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The prefix 'kilo' stands for 'one thousand'. So, 1 km = 1000m

This obviously implies that 8km is the same as 8000m

1 kilometer = 1000 meters

8 kilometers = 1000 meters × 8

Ans = 8000 meters

If you need a better explanation just as in the comments.

Happy to help! Please mark as BRAINLIEST! Thanks

Answer:

(2, 3)

Step-by-step explanation:

[tex] -2(2) + 6(3) = 14 \\ \\ -4 + 18 = 14 \\ \\ \\ 6(2) - 3(3) = 3 \\ \\ 12 - 9 = 3[/tex]

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Answer:

w + 8

Step-by-step explanation:

No. of stickers Lindsay has = w + 8

Answer:

Step-by-step explanation:

Let W: Number of stickers owned by Whitney.

Looking closely to the sentences: "Lindsay has eight more stickers than Whitney", we found that Lindsay owns "eight more than". This means 8 extra stickers than Lindsay. Therefore, Lindsay owns "W+8" stickers.

Answer: W+8

Answer:

[26, -32]

Step-by-step explanation:

7[-y - 6] + 6y = -10

-7y - 42 + 6y = -10

-y - 42 = -10

+ 42 + 42

____________

-y = 32

-32 = y [Plug this back into both equations to get the x-value of 26]; 26 = x

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Answer:

B

Step-by-step explanation:

x − 3 − 2(6 − 2x) = 2(2x − 5)

Answer:

x = 2 ± [tex]\sqrt{13}[/tex]

Step-by-step explanation:

To find the zeros let y = 0, that is

x² - 4x - 9 = 0 ( add 9 to both sides )

x² - 4x = 9

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 2) x + 4 = 9 + 4

(x - 2)² = 13 ← take the square root of both sides

x - 2 = ± [tex]\sqrt{13}[/tex] ← add 2 to both sides

x = 2 ± [tex]\sqrt{13}[/tex]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (6, 5)

m = [tex]\frac{5-2}{6-1}[/tex] = [tex]\frac{3}{5}[/tex], thus

y = [tex]\frac{3}{5}[/tex] x + c ← is the partial equation of the line

To find c substitute either of the 2 points into the partial equation

Using (1, 2), then

2 = [tex]\frac{3}{5}[/tex] + c ⇒ c = 2 - [tex]\frac{3}{5}[/tex] = [tex]\frac{7}{5}[/tex]

y = [tex]\frac{3}{5}[/tex] x + [tex]\frac{7}{5}[/tex] ← in slope- intercept form

Answer: -5!

Step-by-step explanation:

Imagine a number line with negatives on the left and positives on the right. The bigger the number is, the more to the right it would be on a number line.

-5 is more to the left than -4. Hope this helps!

Answer:

Step-by-step explanation:

[tex]3(x+2)=4(x+1)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\(3)(x)+(3)(2)=(4)(x)+(4)(1)\\\\3x+6=4x+4\qquad\text{subtract 6 from both sides}\\\\3x+6-6=4x+4-6\\\\3x=4x-2\qquad\text{subtract}\ 4x\ \text{from both sides}\\\\3x-4x=4x-4x-2\\\\-x=-2\qquad\text{change the signs}\\\\x=2[/tex]

Answer:

x=2

Step-by-step explanation:

Answer:

Each pound costs $1.76. Hope this helps :)

Answer:

Step-by-step explanation:

right angle: an angle of 90°

vertical angles: each of the pairs of opposite angles made by two intersecting lines.

complementary angles: either of two angles whose sum is 90°.