MATHEMATICS MIDDLE SCHOOL

3. 5x - y = 4
2x + 2y = 16​

Answers

Answer 1
Answer:

Answer:x=2.67, y =5.35

Step-by-step explanation:

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Write a subtraction problem with mixed numbers in which the difference is 2 over 7. Calculate difference to check your answer

Answers

3 (5)/(7) -3 (3)/(7) = (2)/(7)

Check:

3 (5)/(7) = (26)/(7)

3 (3)/(7) = (24)/(7)

(26)/(7) - (24)/(7) = (2)/(7)

Describe and correct the error in finding the product
2/5×3/10=6/50=3/25

Answers

Answer: There is not error in finding the product. The result is: =(3)/(25)


Step-by-step explanation:

1. You have the following multiplication shown in the problem above:

(2)/(5)*(3)/(10)

2. To solve it you must multiply the numerators and multiply the denominators, as you can see below:

(2*3)/(5*10)=(6)/(50)

3. When you simplify the product, you obtain the following result:

=(3)/(25)

Alicia is making cupcakes for a party she is having and wants to make sure everyone gets at least 1 cupcake The recipe calls for 1/2 teaspoon of salt for every batch and each batch makes 21 cupcakes if the part will have a total of 84 people attending how many teaspoon of salt will Alicia need.

Answers

2 teaspoons

21+21=42 so for every 1 teaspoon there is 42 people

42+42=84 so it’s 2 teaspoons

Answer:

Let's imagine that x is the number of teaspoon of salt needed to make at least 84 cupcakes.

So we know that, 1 batch makes 21 cupcakes, and we need at least 84 cupcakes, so the number of cupcakes batch needed here should be:

84 ÷ 21 = 4 (batches)

Since we knew the number of batches that we need to make the cupcakes, we now calculate the amount of sugar needed. We have:

1/2 teaspoon of salt for every 1 batch.

x teaspoon of salt for every 4 batches.

x = (4 . 1/2) . 1 = 2 (teaspoons)

11 and a half gallons is equal to how many quarts

Answers

There are 4 quarts in one gallon. 
there will be 2 quarts in HALF a gallon. (2 is half of 4).

Pls help! will give brainlist!Eric is rolling a fair number cube. The probability of rolling an even number is?

a. more likely than a rolling an odd number.

b. equal to rolling an odd number

c. less likely than rolling an odd number.

d. impossible.

Answers

i believe the correct answer is B

Answer:

i know the right answer is b

Step-by-step explanation:

What is the answer of y=1\3x-10 if x=12

Answers

y= 1/3x-10

if x= 12

Y=1/3(12)-10

Y= 12/3 -10

divide 12/3 by 3

12/3 = 4

Y= 4-10

Y= -6

I hope that's help and please if you have questions just let me know !


y=1/3·12-10

1/3·12=4

=4-10

=-6

y=-6
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