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3 years ago

Solve the proportion: Round answer to nearest tenth, if necessary: r =_____

Mathematics

2 answers:

mart [117]3 years ago

3 0

Answer:

The value of r is 4

Step-by-step explanation:

$\frac{r}{4} = \frac{60}{120}$

In order to find the value of r, you need to get rid of denorminator. By multiplying 4 to both sides:

(r/4)×4 = (60/120)×4

r = (1/2)×4

= 2

Margarita [4]3 years ago

3 0

Answer:

r = 2

Step-by-step explanation:

Note that 60/120 reduces easily to 1/2. Then we have:

r/4 = 1/2

Multiplying both sides by 4 removes the fractions, yielding r = 2

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Please help if you can

ella [17]

13x6=78

12x5=60 (the two triangles are equals keep it like this)

12x6=72

5x5=25

78+60+72+25=235 cm

Hope this could help

3 0

3 years ago

Factor 3/4 out of 3/4z + 6

Alenkasestr [34]

ANSWER

$\frac{3}{4} z + 6 = \frac{3}{4} (z + 8 )$

EXPLANATION

We want to factor
$\frac{3}{4}$
out of

$\frac{3}{4} z + 6$

The first term is already having a factor of
$\frac{3}{4}$
The constant term which is the second term is not having a factor of
$\frac{3}{4}$
so we need to use a trick of multiplying and dividing by the same factor to obtain,

$\frac{3}{4} z + 6 = \frac{3}{4} z + \frac{3}{4} \times \frac{6}{ \frac{3}{4} }$

We can now factor
$\frac{3}{4}$
out of the right hand side to obtain,

$\frac{3}{4} z + 6 = \frac{3}{4} (z + \frac{6}{ \frac{3}{4} } )$
Let us rewrite the right most fraction using the normal division symbol.

$\frac{3}{4} z + 6 = \frac{3}{4} (z + 6 \div \frac{3}{4} )$

We simplify to obtain,

$\frac{3}{4} z + 6 = \frac{3}{4} (z + 6 \times \frac{4}{3} )$

This further gives us,

$\frac{3}{4} z + 6 = \frac{3}{4} (z + 2 \times 4 )$

$\frac{3}{4} z + 6 = \frac{3}{4} (z + 8 )$

5 0

4 years ago

Read 2 more answers

What is the equation of the asymptote of the graph of y=2(6^x) ?

Arlecino [84]

The value of can never be 0

y = 0

A

6 0

4 years ago

F(7) if f(x)=-3x-2

Paul [167]

Answer:

f(7) = -23

Step-by-step explanation:

f(x) = -3x - 2

f(7) = -3(7) - 2

f(7) = -21 - 2 = -23

4 0

3 years ago

Eli is making a party mix that contains pretzels and chex. For each cup of pretzels, he uses 3 cups of chex. He wants to make 12

Bogdan [553]

Answer:

36 cups of Chex total.

Step-by-step explanation:

Well, he will obviously be using 12 cups of pretzels, so let's set that aside. For every cup of pretzels, there are 3 cups of chex. So, multiply 3x12. That will give you how much chex you will need.

4 0

4 years ago