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3 years ago

If you were to add 5 to my number and then divide by 4, you would get 7

Mathematics

2 answers:

nadezda [96]3 years ago

4 0

-3.25, because if you work backwards and do the math you’d divide 7 and 4 which equals 1.75 then subtract that by 5

Norma-Jean [14]3 years ago

3 0

Let's make an equation. T will be the number.
(T+5)/4=7
Let's multiply both sides by 4 to get T by itself.
T+5=28
Subtract 5 from both sides.
T=23
Your number is 23.

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Two numbers have a difference of 4 and -8. What is their product?

Wittaler [7]

Difference means - so 4-(-8)

which also the same as 4+8 so ur answer is 12

7 0

3 years ago

A recipe for sparkling water juice calls for 1 1/2 quarts of sparkling water and 3/4 quart of grape juice

Alexxx [7]

Answer:

You would need 18 quarts of sparkling water to mix with 9 quarts of grape juice

Step-by-step explanation:

1 1/2 ---------> 3/4

x --------------> 9

We clear the value of x:

x = ((9) / (3/4)) * (1 1/2)

Rewriting we have:

x = ((9) * (4/3)) * (1 1/2)

x = (36/3) * (1 1/2)

x = (12) * (1 1/2)

x = (12) * (3/2)

x = 18

7 0

3 years ago

What is the least common denominator of 8/9 + 4/7?

SVEN [57.7K]

Do you mean LCM (Least common multiple)

7 0

3 years ago

Read 2 more answers

8.4.9 On or off the line & Practice Problems

Andrews [41]

Answer:

Number of quarters → 15

Number of dimes → 2

Step-by-step explanation:

Let the number of dimes I have = y

And number of quarters = x

Since, I have amount in my pocket = $2

Therefore, 0.10y + 0.25x = 2

100(0.10y + 0.25x) = 100×2

25x + 10y = 200

5x + 2y = 40

2y = -5x + 40

y = -2.5x + 20 ---------(1)

Total number of coins in my pocket = 17

x + y = 17

y = -x + 17 ---------(2)

By using a graphing calculator we can graph these two lines (As attached)

Solution of the given system of equations will be the point of intersection of these lines.

Solution → (2, 15)

Number of quarters → 15

Number of dimes → 2

4 0

3 years ago

One bag of rice that weighs 4.5 pounds will have enough rice if a recipe calls for 60 ounces of rice. (1 pound = 16 ounces)

dimulka [17.4K]

Answer:

Step-by-step explanation:

Since the bag of rice is 4.5 pounds, and there are 16 ounces per pound, multiply 16 x 4 = 64. Now what is half of 16? 8! So divide 5/8 = 0.625.

So in the end, yes the bag of rice will have enough rice. Here's my math:

16 x 4 = 64

5 / 8 = 0.625

So, you will have 64.625 ounces of rice which is plenty for your recipe!

I really hope this helps you!

6 0

3 years ago