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Rina8888 [55]
2 years ago
8

Find a value of x that makes the equation true: -(-2x + 1) = 9 – 14x

Mathematics
2 answers:
luda_lava [24]2 years ago
5 0

Answer:

x=0.625

Step-by-step explanation:

-(-2x+1)=9-14x

distribute:

2x-1=9-14x

add  1 to both sides

2x = 10-14x

add 14x to both sides

16x=10

divide by 16 to isolate x

x = 0.625

check:

-(-2(0.625)+1) = 9-14(0.625)

0.25 = 0.25

charle [14.2K]2 years ago
5 0
The final answer to this problem would be 0=0.625
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A rectangular block of material is on your dad’s desk that acts as a paperweight. The measurements are 3 cm times 4 cm times 6 c
Vika [28.1K]

Answer: Marble

Step-by-step explanation:

Multiply 3x4x6 and you should get 72. Divide 184.32 by 72 and you should get 2.56 which is marble.

6 0
3 years ago
26,) If y varies inversely as x, and y = 5 as x = 6, find y for the x-value of 10.
melisa1 [442]

Answer:

3

Step-by-step explanation:

the initial statement is  

y ∝ 1 /x

 to convert to an equation multiply by k the constant

of variation

y = k × 1 /x = k /x

to find k use the given condition

y = 5  when  x = 6

y = k/ x ⇒ k = y x = 5 × 6 = 30

y = 30 /x

when  

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then

y = 30 /10 = 3

4 0
3 years ago
Read 2 more answers
Please answer! Correct answers get brainiest.
egoroff_w [7]

Answer:

7/5 y --> y+ 2/5y

0.68y --> y - 0.32y

3/5y --> y - 2/5y

1.32y --> y+ 0.32y

Step-by-step explanation:

Pretend there is a 1 in front of each y that doesn't have a number (coefficient) in front of it. 1 = 5/5, and then just solve for the fraction expressions.

7 0
3 years ago
Read 2 more answers
There can be more than one option answer it fast in two minutes
san4es73 [151]

all of them except the last efg and bcd

5 0
3 years ago
A 30cm board is cut down to be 25.5 cm. What is the percent decrease in length?
zmey [24]
Okie, so percent decrease is the amount loss divided by the original number and multiplied by 100 to find the percent. This is because you are finding the amount loss in terms of the total amount - percent basically.
The amount loss : 4 feet
4 feet/ 12 feet = .3333 (ratio of how much cut) multiply by 100 --> 33.3% decrease. From 12 feet to 8 feet is a 33.3 % decrease. I hope this helps :-)
8 0
3 years ago
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