All categories

3 years ago

One-Step Equations:

Mathematics

2 answers:

Charra [1.4K]3 years ago

6 0

1. x= 18.4
2.x=12.3
3.x=6.4
4.z=5.8
5.x=-1/2
6.x=7/18
7.x=-9
8.z=18
9.x=7

erastova [34]3 years ago

3 0

9. X=7. 7-8=-1

8. X=18. 18-7=11

You might be interested in

Round your answer to the nearest hundredth. C 5 B. 7 ? A

astraxan [27]

Answer:

If C is 5 and B is 7 the a is 9

7 0

2 years ago

4. If you have 15 pens which cost $0.79

katrin [286]

Answer:

The answer is 15.62

Step-by-step explanation:

To get the answer, you would first multiply 15*0.79 to get 11.85

Then you would multiply 13*0.29 to get 3.77

Lastly, add 11.85 and 3.77 to get your final answer of $15.62

3 0

2 years ago

The expression (x2 + 16x + 64) – (x + 8)(x – 4) can be rewritten as k(x + 8). What is the value of k? k =

9966 [12]

$expanding \\ {x}^{2} + 16x + 64 - ( {x}^{2} + 4x - 32) \\ distributing \: - 1 \\ {x}^{2} + 16x + 64 - {x}^{2} - 4x + 32 \\ 12x + 96 \\ take \: a \: factor \: of \: 12 \\ 12(x + 8) \\ so \: k = 12$

5 0

2 years ago

Founder's Park is planning to add a slide. The scaled model gives the reduced measures. A slide has a width of 3.5 inches and he

OLEGan [10]

Answer: The slide will have a height of 6 feet.

Step-by-step explanation:

Given: A slide has a width of 3.5 inches and height of 3 inches.

For required slide , width = 7 feet]

To keep the slide proportional to the model,

$\dfrac{\text{height of the required slide}}{\text{height of the slide }}=\dfrac{\text{width of required slide}}{\text{width of slide}}$

$\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=\dfrac{7}{3.5}\\\\\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=2\\\\\Rightarrow\ \text{height of the required slide}=3\times2 =6\ \text{feet}$

hence, the slide will have a height of 6 feet.

3 0

2 years ago

Read 2 more answers

Simplify (4 √ 14 + 4 √ 10 ) ( 3 √ 7 − 4 √ 5 )

Iteru [2.4K]

Answer:

4 sqrt(2) - sqrt(70)

Step-by-step explanation:

Simplify the following:

(4 sqrt(14) + 4 sqrt(10)) (3 sqrt(7) - 4 sqrt(5))

Factor 4 out of 4 sqrt(14) + 4 sqrt(10) giving 4 (sqrt(14) + sqrt(10)):

4 (sqrt(14) + sqrt(10)) (3 sqrt(7) - 4 sqrt(5))

(sqrt(10) + sqrt(14)) (3 sqrt(7) - 4 sqrt(5)) = sqrt(10) (-4 sqrt(5)) + sqrt(10)×3 sqrt(7) + sqrt(14) (-4 sqrt(5)) + sqrt(14)×3 sqrt(7) = -20 sqrt(2) + 3 sqrt(70) - 4 sqrt(70) + 21 sqrt(2) = sqrt(2) - sqrt(70):

Answer: 4 sqrt(2) - sqrt(70)

4 0

3 years ago