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2 years ago

90x=120y What is the ratio of x : y?

Mathematics

2 answers:

finlep [7]2 years ago

5 0

Answer:

3:4

Step-by-step explanation:

find the GCD of both numbers (30) and divide both sides to get 3:4

Mrac [35]2 years ago

5 0

Answer:

3:4

Step-by-step explanation:

90x : 120y

Simplify the ratio.

90x/30 : 120y/30

3x : 4y

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Quickly please im very confused

deff fn [24]

Answer:

A: -16/3

B: 16/3

C: -6

D: -6

E: 6

Step-by-step explanation:

A would be -16/3 because you multiply -2 time 8 which is 116. And the denominator is 3.

B would be 16/3. It is the same as problem A but there are two negatives which make positive.

C is -6. You just divide -18/3.

D is the exact same as C. It just has parenthesis but the answer is still -6.

E is 6 because there are two negatives which make a positive.

5 0

2 years ago

2 people share 4/3 feet of rope. What length of rope should each friend get?

melisa1 [442]

2 x $\frac{4}{3}$ = $\frac{6}{3} * \frac{2}{3} = \frac{12}{9} = \frac{4}{3}$

5 0

3 years ago

a. Fill in the midpoint of each class in the column provided. b. Enter the midpoints in L1 and the frequencies in L2, and use 1-

Tresset [83]

Answer:

$\begin{array}{ccc}{Midpoint} & {Class} & {Frequency} & {64} & {63-65} & {1} & {67} & {66-68} & {11} & {70} & {69-71} & {8} &{73} & {72-74} & {7} & {76} & {75-77} & {3} & {79} & {78-80} & {1}\ \end{array}$

Using the frequency distribution, I found the mean height to be 70.2903 with a standard deviation of 3.5795

Step-by-step explanation:

Given

See attachment for class

Solving (a): Fill the midpoint of each class.

Midpoint (M) is calculated as:

$M = \frac{1}{2}(Lower + Upper)$

Where

$Lower \to$ Lower class interval

$Upper \to$ Upper class interval

So, we have:

Class 63-65:

$M = \frac{1}{2}(63 + 65) = 64$

Class 66 - 68:

$M = \frac{1}{2}(66 + 68) = 67$

When the computation is completed, the frequency distribution will be:

Solving (b): Mean and standard deviation using 1-VarStats

Using 1-VarStats, the solution is:

$\bar x = 70.2903$

$\sigma = 3.5795$

See attachment for result of 1-VarStats

8 0

2 years ago

Which steps will generate an expression equivalent to 20(x + 17)?

DiKsa [7]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Any two lines lie in exactly one plane. True False

egoroff_w [7]

Answer: False

Explanation / Counterexample: Two lines in a 3-dimensional space can lie in two different planes.

6 0

2 years ago