Which proportion would you use to solve the following problem?

A map has a scale of 1 cm : 5 km. Determine how far apart two cities are if they are 4 cm apart on the map.

Answer:

a and d probably?

Step-by-step explanation:

Answer:

a and d

Step-by-step explanation:

Answer:

for a it would be 11/18 and for b it would be 4/9

Step-by-step explanation:

This is because I did the same butterfly method. 5 times 5 times 18 which is 90 for 5/9 and 9 times 18 is 99 for 11/18, you can also write it as 5/9 and 11/18 but cross multiply. This is also what I did with the second one.

Answer:

3√729 rational

√25 rational

3√758 irrational

√42 irrational

0.19(the repeating one) is rational

Step-by-step explanation:

9^3 = 729

5^2 = 25

0.19 has an pattern  

Answer:

E is the answer

Step-by-step explanation:

I used my head. Hope this is right.

Answer:

Point Form:

(-1/4, -7/8)

Equation Form:

x= -1/4, y= -7/8

Step-by-step explanation:

Answer:

x=-4, y=-6.5

Step-by-step explanation:

First, we need to find the value of x so

x+2=-2

-2 -2

x=-4

now plug the value of x, in the second equation

-3(-4)+2y=-1

12+2y=-1

minus 12 from both sides

12+2y=-1

-12 -12

2y=-13

divide by 2 to get the value of y

y=-6.5

Answer:

the answer is 5

Step-by-step explanation:

hope that helps

Answer:

20

Step-by-step explanation:

its minusing by 9 so 20

Answer:

9

Step-by-step explanation:

this is your answer becaue 65-56 =9

56-47=9

47-38=9

38-29=9

so your answer is 9

HOpe this helps u

Pls mark brainlist

Answer:

HHHHHHI||||||||||||||||||||||||||

Step-by-step explanation:

Answer: -9 for the third row it would be -9 -2 5

Step-by-step explanation:

Your welcome

Answer:

Answer is

Step-by-step explanation:

1:4 is the correct answer

Answer:

22/5 or 4.4

Step-by-step explanation:

2x-10= 12-3x

2x=22-3x

5x=22

x=22/5 or 4.4

Answer:d

Step-by-step explanation:

A negative times a negative becomes positive.

-6 x -1/2 = 3

The answer is D. 3

Answer:

the way it is graphed is confusing so I thing it's number line #2 or #3 because you need -1 and -8

Answer:

$50.40  is the answer

Step-by-step explanation:

12% of  45 is 5.40  so if we add $5.40 and $45 we get $50.40

hope this helps ^-^ have a wonderful day

Answer:

x = 5

Step-by-step explanation:

-4x + 2 = -18

subtract 2 from both sides

-4x + 2 - 2 = -18 - 2

simplify

-4x = -20

divide both sides by -4

-4x/-4 = -20/-4

simplify

x = 5

hope this helps :) have a nice day !!

Answer:

cant see pic

Step-by-step explanation:

y

Answer:

d: StartFraction 20 over 95 EndFraction (100) is your answer

Step-by-step explanation:

i did the math

Answer:

It is D/ the last answer

Step-by-step explanation:

Answer:

6. [tex]\sqrt{31}[/tex]

7. [tex]3\sqrt{5}[/tex]

8. [tex]4\sqrt{10}[/tex]

Im not 100% sure about number 6.

Exact form: [tex]\sqrt{30.8125}[/tex]^

Hope this helps:)

Brainliest?

Answer:

a. a*(a+b)

b. 2(a)+5

Step-by-step explanation:

Lets just say that a is your number. B was the second number in your first equation being added to a.

2)

9cm, 12cm, 16cm

8cm, 15cm, 17 cm

6cm, 8 cm, 10 cm

3)

87 inches

Can also be 49.5

Hope it helps~~

Answer:

109

Step-by-step explanation:

every straight line equals 180 so the sum of the angles should add up to 180

180-71= 109

side note- interior angles add up to 180

Answer:

8 feet.

Step-by-step explanation:

If we know the shadow (30 ft) of a tower (15 ft), we can use use the ratio

[tex]\frac{30}{15}=\frac{16}{x}[/tex] where 'x' is the height of the telephone pole. Cross multiply, and we get the equation [tex]240=30x[/tex]. The rest of the problem is pretty straightforward, we divide both sides by 30 to find x. In the end, you will find that the height of the telephone pole is 8 feet.

Hope this helped!

Answer:

[tex]\frac{3}{4} =\frac{18}{24}[/tex] The ratios are the same .

Step-by-step explanation:

When  y ∝ x then,

[tex]y=k*x[/tex]

When y ∝ 1/x then

[tex]y=\frac{k}{x}[/tex]

while k is a constant.

Answer:

3/4 and 18/24; the ratios are the same.

Step-by-step explanation:

A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "three is to four as eighteen is to twenty-four."

In problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. To find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

Here, 3 and 24 are the extremes, and 4 and 18 are the means. Since the cross products are both equal to 60, we know that these ratios are equal and that this is a true proportion.

Answer:$17

Step-by-step explanation:

x/20=15/100 then solve for x

Answer:

Lin's father will pay $17.

Step-by-step explanation:

15 ÷ 100 = 0.15.

0.15 x $20 = $3.

$20 - $3 = $17.

Answer:

2 hours & 10 minutes

Step-by-step explanation:

25+20+35+50= 130 minutes— 2 hours & 10 minutes

Hope this helps!

Answer:

The answer is 31/15

Step-by-step explanation:

Thank me later

Hope this helps

Answer:

The answer is

because 46 divided by 15 = 46/15 . 46 is more closer to 45 which can be divided by 15. 45 divided by 15 = 3 but the orignal question is 46 divided by 15 not 45 divided by 15 so 46 - 45 = 1 so 3 1/15

Explanation"

because 46 divided by 15 = 46/15 . 46 is more closer to 45 which can be divided by 15. 45 divided by 15 = 3 but the orignal question is 46 divided by 15 not 45 divided by 15 so 46 - 45 = 1 so 3 1/15

Answer:

sorry

Step-by-step explanation:

Answer:

search it up there is a lesson

Step-by-step explanation:

Answer:3

Step-by-step explanation:

38+s6$