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Deffense [45]
3 years ago
12

What is the solution to the equation x + 7.5 = 21.5? A.x = 2.9 B.x = 7.8 C.x = 14 D.x = 29

Mathematics
2 answers:
dedylja [7]3 years ago
8 0
X+7.5=21.5
Subtract 7.5 from both sides
X=14 which is C
hope this helps good luck have a nice day
Natalka [10]3 years ago
6 0
The answer is C.x=14
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Rewrite 4/7 and 3/5 so they have common denominator
Vladimir [108]
20/35 and 21/35. The common denominator is 35.
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3 years ago
Which expression is equivalent to 7 (x y)?
joja [24]

Answer:

it's option c x(7y)

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7 0
2 years ago
The city library donated some children’s books to Mr.
azamat

According to the statement 160 books were given to the class.

The correct option is C.

<h3>What is linear equation?</h3>

One or two variables make up a linear equation. Neither the numerator nor the denominator of a fraction can be a variable in a linear equation raised to a power higher than 1. All of the points on a coordinate grid sit on the same line when you identify the values that together make a linear equation true and plot those values.

<h3>According to the given information:</h3>

Let the no. of students be s:

Let the no. of books be b:

Given that there will be 20 books left after each student selects 4 books,

b = 4s + 20

And the remaining students take 5 books each, therefore b=5(s3), even if 3 pupils choose not to take a book.

comparing the value b

4s+20=5(s−3)

4s+20=5s−15

s=20+15

s=35

To do this, change the value of s in b=4s+20 to what is shown below:

b=4(35)+20

b=140+20

b=160

160 books were given to the class.

To know more about linear equation visit:

brainly.com/question/766814

#SPJ4

5 0
1 year ago
The questions is in the picture so are the answers pls help!!! I’ll pick brainliest
SashulF [63]
The first choice because it’s easier than having to add a bunch of numbers so S=(9)(2)(4)
4 0
3 years ago
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