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3 years ago

Solve the proportion: 12/R = 5/60

Mathematics

2 answers:

salantis [7]3 years ago

6 0

I was to tired to write it down

olga_2 [115]3 years ago

5 0

You cross multiply 12•60 which gives you 720 and you still have 5r which will leave you to dividing by “5” from this equation ➡️ 5r/720 which will give you R=144

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Ian's monthly allowance is $21. In January he starts saving for a birthday gift in June. Each month he saves of his allowance. T

Dmitrij [34]

Answer:

<h2>Ian will have enough money to buy the gift</h2>

Step-by-step explanation:

Step one:

given

monthly allowance= $21

from January to June= 6 months

total savings = 21*6= $126

cost of gift = $110

Step two:

Ian will have enough money to buy the gift

since he saved $126 which is greater than the cost of the gift of $110

he would have a balance of $16

4 0

2 years ago

What is the sum of series is numbers 64&66 ?<br> Using the summation notation

iragen [17]

Answer:

64. 6138

66. 8.078125

Step-by-step explanation:

Let's take it one number at a time.

For number 64:

$6(2)^{1-1}=6$

$6(2)^{2-1}=12$

$6(2)^{3-1}=24$

$6(2)^{4-1}=48$

$6(2)^{5-1}=96$

$6(2)^{6-1}=192$

$6(2)^{7-1}=384$

$6(2)^{8-1}=768$

$6(2)^{9-1}=1536$

$6(2)^{10-1}=3072$

Sum = 6 + 12 + 24 + 48 + 96 + 192 + 384 + 768 + 1536 + 3072

Sum = 6138

For number 66:

$12(-\frac{1}{2})^{0}=12$

$12(-\frac{1}{2})^{1}=-6$

$12(-\frac{1}{2})^{2}=3$

$12(-\frac{1}{2})^{3}=-1.5$

$12(-\frac{1}{2})^{4}=0.75$

$12(-\frac{1}{2})^{5}=-0.375$

$12(-\frac{1}{2})^{6}=0.1875$

$12(-\frac{1}{2})^{7}=-0.0078125$

$12(-\frac{1}{2})^{8}=0.046875$

$12(-\frac{1}{2})^{9}=-0.0234375$

Sum = 12 + -6 + 3 + -1.5 + 0.75 + -0.375 + 0.1875 + -0.0078125 + 0.046875 + -0.0234375

or to make things simpler:

Sum = 12 - 6 + 3 - 1.5 + 0.75 - 0.375 + 0.1875 - 0.0078125 + 0.046875 - 0.0234375

Sum = 8.078125

4 0

3 years ago

PLEASE HELP<br><br> 10 POINTS!

valentina_108 [34]

Answer: Point C :&382&:$

6 0

3 years ago

Read 2 more answers

2 to the square root of 6 + 3 to the square root of 54

sdas [7]

Answer:

I think it's 12×54 but im probs wrong

3 0

3 years ago

In one season a basketball player missed 20% of her free throws. How many free throws did she attempt if she made 200 free throw

vfiekz [6]

Answer:

She attempt 1,000 free throws

Step-by-step explanation:

X • 0.2 = 200

X = 200/0.2

X = 1,000

6 0

2 years ago