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RoseWind [281]
3 years ago
15

Pls answer this question

Mathematics
2 answers:
sukhopar [10]3 years ago
8 0
10 (2x + 3) = 15 x 9
20x + 30 = 135
20x = 135-30 = 105
x = 105 / 20 = 5.25
answer: x = 5.25
Semmy [17]3 years ago
5 0

Answer:

x=\frac{21}{4}

Explanation:

\frac{2x+3}{15}\cdot \:10=\frac{9}{10}\cdot \:10

2x+3-3=\frac{27}{2}-3

\frac{2x}{2}=\frac{\frac{21}{2}}{2}

x=\frac{21}{4}

=5,25

(Its the same as the answer above; though I wrote in fraction equation)

You might be interested in
How to solve consecutive integers
Ivahew [28]
Assign a variable to the smallest integer: x

Apply the relationship to the first integer to the second. 
For example: the second integer is 4 greater than the first integer.

the second integer would = x+4

Then what their sum/difference/quotient/etc. would be, put that into a formula.

For example:

One integer is greater than the other by four. Their sum is 16 and their product is 60. Find the value of the first integer.

First integer: x
Second integer: x+4

Equation:

x+x+4=16
x=6

Answers:
First integer: 6
Second integer: 10

4 0
3 years ago
-4r-8(r-6)=7(5r-1)+8
KATRIN_1 [288]

Answer:

r = 1

Step-by-step explanation:

In this question, we have to solve for the vallue of "r". We will use the distributive property shown below to ease our process.

Distributive Property:

a(b+c) = ab + ac

Now, lets solve this:

-4r-8(r-6)=7(5r-1)+8\\-4r-8r+48=35r-7+8\\-12r+48=35r+1\\48-1=35r+12r\\47=47r\\r=\frac{47}{47}\\r=1

As we have seen the value of r is "1"

6 0
4 years ago
"shannon drove her car 140 miles east at a rate of 70 miles per hour. how long did she travel?
KIM [24]
She drove 2 hours because when you divide 140 by 70 u get 2
6 0
3 years ago
How do you do this? (6D)
Nitella [24]
I believe the answer is 5.3. i think
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5 0
4 years ago
Sally, Ron and Jerry shared some sandwiches that were the same size and cut into eighths. Sally ate 5/8 of the sandwiches, Ron a
ICE Princess25 [194]
Ron ate the most sandwiches because Jerry only ate 6/8 and that is lower than 7/8. 5/8 is also lower than 7/8
8 0
3 years ago
Read 2 more answers
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