MATHEMATICS MIDDLE SCHOOL

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar . She adds 5 groups. What numbers does she say?

Answers

Answer 1
Answer: If the groups are all made up of 10 pennies and she added 5 groups, then

5 x 10 = 50

Which means she added 50 pennies to the jar and now has 150 pennies. :)

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A recipe for guacamole uses 12% lime juice, if a batch contains 0.75 cup of lime juice, how large is the batch of guacamole?

Answers

Answer:

The batch of guacamole is: 6.25.

Step-by-step explanation:

It is given that:

A recipe for guacamole uses 12% lime juice.

This means that:

A recipe for guacamole uses 0.12 lime juice.

This means that:

1 cup of lime juice= 1/0.12 guacamole.

Also,

a batch contains 0.75 cup of lime juice.

This means that:

   0.75 cups of lime juice=0.75/0.12 guacamole.

i.e.

   0.75 cups of lime juice=6.25 guacamole.

Hence, one batch = 6.25 guacamole.
0.75/0.12=6.25

the batch is 6.25 cups

I really need help on this question anyone

Answers

well on 3 for the circle its 1/2×15×8=60

F(x) = Square root of x + 8.; g(x) = 8x - 12 Find f(g(x)).

Answers

Answer:

8x - 12 +8

Step-by-step explanation:

Answer:

f(g(x)) would be equivalent to inserting the equation for g(x) into the equation of f(x). The answer would thus be square root of 8x - 12 +8

Step-by-step explanation:

Harper works at an electronics store as a salesperson. Harper earns a 6% commission on the total dollar amount of all phone sales she makes, and earns a 5% commission on all computer sales. Harper made a total of $2600 in sales and earned $137 in commission. Write a system of equations that could be used to determine the dollar amount of phone sales Harper made and the dollar amount of computer sales she made. Define the variables that you use to write the system.

Answers

Answer:

The system of equations are

x + y = 2600   …….equation (1)

and, 6x + 5y = 13700  ……equation (2)

Explanation:

Let x = amount of sales of phone;

y = amount of sales of computer

For phone, 6% of sales is 6% of x, or 6% * x = 0.06x.

Similarly for computer,

5% of y = 0.05y

Given the total sales; x + y = 2600

And commission; 0.06x + 0.05y = 137; or 6x + 5y = 13700

Therefore the system of equations are

x + y = 2600   …….equation (1)

6 x + 5 y = 13700  ……equation (2)

A ladder is leaning against a building and makes 32° angle with the ground. The top of the ladder reaches 20 feet up on the building.What is the length of the ladder?

Answers

Answer:

37.74 ft

Step-by-step explanation:

An angle and its opposite side are known

Sin (of the angle)= opposite/ hypotenuse

The hypotenuse is equal to the length of the ladder, therefore solve the hypotenuse

Sin (32)= 20/ hypotenuse

hypotenuse= 20/ Sin (32)

Sin (32)=0.5299

hypotenuse= 20/ 0.5299

37.74 ft

Hopefully this helps :)

Answer:

37.74

Step-by-step explanation:

37.74

Please answer the question from the attachment.

Answers

5/3 means (5 over 3 since I can't do fractions on this) 5/3-3/3=___ 5-3=2 first you do the numerators You keep the denominator the same since both denominators are 3 Then you put it together and get 2/3 and since 2/3 can't be reduced, 2/3 is the answer
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