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attashe74 [19]
3 years ago
10

The following is a square, solve for x

Mathematics
1 answer:
QveST [7]3 years ago
7 0

Answer:

6

Step-by-step explanation:

Multiply 7x+3 by 2. When you get 14x+6, set equal to 90 and solve for x.

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Can you help with this to?
love history [14]

Answer:

total change in time when you used 5 clues is 10.

Step-by-step explanation:

if you have 3 free clues, then 5-3 =2

That means you used 2 additional clues. 2 clues means 5*2 min reduced which is 10 mins reduced. The total time you have is x and the total time left is x-10 after you used the two clues.

Does this help?

6 0
3 years ago
Read 2 more answers
True or False. i think this is easy but
inna [77]

Answer:

of course its true

Step-by-step explanation:

8 0
3 years ago
Look at the tree diagram for tossing a coin three times. Find the probability of getting exactly two tails.
lana66690 [7]

Answer:

3/4

Step-by-step explanation:

use a calculator

6 0
3 years ago
Sally can detail a car in 50 minutes. Manny does the same job in 35 minutes. How long will it take them to detail a car working
Debora [2.8K]

<u>Answer:</u>

Both Sally ans Manny can detail a car in 20.6 min.

<u>Solution: </u>

Let us assume that together they will take total x minutes to detail the car.

Sally detail the car in 50 min.

So in 1 min sally can detail \left(\frac{1}{50}\right) of the car.

Hence in x min sally can detail \left(\frac{x}{50}\right) of the car.

Manny can detail a car in 35 min.

So in 1 min many can detail \left(\frac{1}{35}\right) of the car.

Hence in x min Manny can detail \left(\frac{x}{35}\right) of the car.

So we can say,

\left(\frac{x}{50}\right)+\left(\frac{x}{35}\right)=1

x\left(\frac{1}{50}+\frac{1}{35}\right)=1

x\left(\frac{7+10}{350}\right)=1

\left(\frac{17 x}{350}\right)=1

17 x=350

x=\left(\frac{350}{17}\right)=20.5 8\approx 20.6

So, both of them can detail a car in 20.6 min.

3 0
3 years ago
Donnie's height increased by 9 is 74 . Use the variable d to represent Donnie's height.
aliya0001 [1]
D= 74 -9 (which is 65)
5 0
2 years ago
Read 2 more answers
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