Grace and her brother need $400 to go to band camp. Their parents have agreed to help them earn money by paying them $25 each time they mow the lawn and $10 for each hour they babysit their younger brother. They will have to do a combination of both chores to earn the money.
Select the equation that represents the number of lawns they can mow, m, and hours they can babysit, b, to earn $400.
M. 10m+ 25b= 400
P. 10m− 25b= 400
R. 25m+ 10b= 400
S. 25m− 10b= 400

Answers

Answer 1

Answer:

25m + 10b = 400

Step-by-step explanation:

Total amount that can be earned = $ 400

Amount earned on mowing a lawn = $ 25

Amount earned per hour on babysitting = $10

Amount earned for mowing one lawn is $ 25, so amount earned for mowing m lawns will be $ 25m

Amount earned for one hour of babysitting is $ 10, so amount earned for babysitting for b hours will be $ 10b

Total amount earned = Amount earned from mowing m lawns + Amount earned from babysitting for b hours

Using the values from above, we can set up the equation as:

400 = 25m + 10b


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For linear function, top to bottom, it's:

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Fractions are integers that have both a numerator and a denominator. They are represented as; [tex]\frac{x}{y}[/tex]

Where:

x = Numerator

y = Denominator.

It will take them both [tex]\frac{7}{12}[/tex] hours or 0.583 hours to finish the job together.

To solve the above question, we would be applying the operations of the addition of fractions.

From the question,

Leni can decorate the room in 4 hours. This means in 1 hour, Leni can paint 1/4 of the room.

Lucy, her sister can decorate the room in 3 hours. This means in 1 hour, lucy can decorate 1/3 of the room.

Let us represent the number of hours it will take them both to decorate the room working together as "T"

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1/T = 3 + 4 / 12

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To learn more, visit the link below;

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Matthew is taking a multiple choice test with a total of 40 points available. Each question is worth exactly 2 points. What would be Matthew's test score (out of 40) if he got 9 questions wrong? What would be his score if he got xx questions wrong?

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Answer:

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Step-by-step explanation:

If their are fourty points avaliable and each question is worth two points, then there are a total of twenty questions (20 times 2 is 40). Therefore, if he gets nine questions wrong, he would have gotten 11 right. Because we know that each question is two points, we may just multiply 11 by 2, which means he has gotten a score of 22 points!

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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0.06x = 3750 - 450

x = (3300 * 0.06) = 198

x = 198

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Step-by-step explanation:

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>> Answer

__________

[tex] \: [/tex]

f(x) = x² - 5x + k

f(7) = 34

Soo :

f(7) = 34

(7)² - 5(7) + k = 34

49 - 35 + k = 34

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k = 34 - 14

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Answers

Answer:

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Step-by-step explanation:

Answer:

x = -2.6

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Simplifying

11 = -5x + -2

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Answer:

7 units

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Answers

No hay solución en la que ambas trayectorias estén en la misma posición, puesto que no existe el riesgo de que sufran un choque entre ellos.

-------------------------

La trayectoria del primero es:

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[tex]x_1 = 2y - 100[/tex]

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[tex]-x + 200 + 2y = 0[/tex]

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Un problema similar es dado en https://brainly.com/question/24653364

A function has zeros at -5, 1, and 3.,
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Step-by-step explanation:

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Answers

Step-by-step explanation:

the slope (or gradient) of a line is the factor of x.

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Answer:

x = 57

Step-by-step explanation:

x and 57 are alternate interior angles and alternate interior angles are equal when the lines are parallel

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Juan graphed a line with a slope of -23
How does Juan count the slope from any point on the graph?

a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.

b. From any point on the graph, he counts up 2 then right 3 to end up on the line again

c. From any point on the graph, he counts down 2 then left 3 to end up on the line again.

d. I don't know.

Answers

Answer:

a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.

Step-by-step explanation:

The slope is -2/3.

-2/3 = 2/-3

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Answer: a. From any point on the graph, he counts down 2 then right 3 to end up on the line again.

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