3 years ago

I need help with question number 5. Someone please help.

Mathematics

1 answer:

ohaa [14]3 years ago

7 0

Answer:

the answer is c because you would be adding the price to find the total amount

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What two numbers add to 10 and multiply to 28

Setler79 [48]

There is no two numbers that can add to 10 and multiply to 28, the highest number you can get by multiplying numbers that add to equal 10 are 5 and 5, and that only reaches 25. I'm sorry

4 0

4 years ago

Give The Algebraic Expression

bulgar [2K]

1. 5-x=15

2. x+12<25

3. 2x-5>47

4. 4(8+x)=88

5.

$\frac{2}{3} x = 72$

6. x+15=-8

7. x-48=62

8. 10÷2x<1/4

9.

$2x - \frac{1}{3} x = 28$

10. 2+2x=48

11. 4x+8=20

12. 6x+19=79

13. 6x-8>15

14. x+(x+1)=29

15. x+(x+2)=46

3 0

3 years ago

Mrs. Kemp began the school year with 20 students in her kindergarten class. She had 23 students at the end of the year. What was

Liula [17]

First, we’re going to use this formula:

2nd number - 1st number
————————————— x 100%
1st number

If we plug in the numbers to this equation:

23-20
———- x 100%
20

And subtract 23 to 20, the answer to this equation is:

3
—- x 100% = 15%
20

In this case, the percent of increase is 15%.

3 0

3 years ago

Use the identity (x+y)(x^2−xy+y^2)=x^3+y^3 to find the sum of two numbers if the product of the numbers is 28, the sum of the sq

lara31 [8.8K]

Step-by-step explanation:

We have xy = 28, x² + y² = 65 and x³ + y³ = 407.

Since (x + y)(x² - xy + y²) = x³ + y³,

x + y = (x³ + y³)/(x² + y² - xy)

= (407) / [(65) - (28)]

= 407 / 37

= 11.

Hence the sum of the numbers is 11.

4 0

3 years ago

Read 2 more answers

Solve for X (line a and b parallel)

shutvik [7]

Answer:

x=29°

Step-by-step explanation:

as lines are parallel.

external alternate angles are equal.

7x-86=4x+1

7x-4x=1+86

3x=87

x=87/3=29

6 0

3 years ago