What is the answer to the equation

Mathematics

2 answers:

Musya8 [376]3 years ago

8 0

3+30+4/2-7
3+30+2-7
=28

KonstantinChe [14]3 years ago

3 0

Without the parentheses it would be 3+6×5+4÷2-7 Which is 28 to help you you can use the order of opporations which is PEMDAS P is parentheses E is exponent M is multiplication D is division A us addition and S is subtraction

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Solve 10 X + 8 / 2 X + 7 is equal to 4

ale4655 [162]

Answer:

x = 10

Step-by-step explanation:

$\frac{10x + 8}{2x + 7} = 4$

or, 10x + 8 = 4(2x + 7)

or, 10x + 8 = 8x + 28

or, 10x - 8x = 28 -8

or, 2x = 20

or, x = 20/2

or, x = 10

x = 10

4 0

3 years ago

How do I do this question

Alekssandra [29.7K]

We know that
circumference=2*pi*r
for r=65/2----> r=32.5 cm
circumference=2*pi*32.5-----> 204.1 cm
so
one revolution <span>of Emma’s bicycle</span> is equal to 204.1 cm-----> 2.041 m
3.2 km-------> 3200 m
1 revolution---------> 2.041 m
x rev------------> 3200 m
x=3200/2.041 ----> x=1567.86 revolutions

the answer is
1567 complete revolutions

3 0

3 years ago

The third mean of a GP of two numbers 27 and 1/27 is 1. Find the number of means.

Artyom0805 [142]

Answer:

The mean is $\sqrt{3}.$