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Elena L [17]
3 years ago
13

(100 pts.) Pre-Al Ratios and Proportionality, check img attactched

Mathematics
2 answers:
uysha [10]3 years ago
8 0

Answer:

16

Step-by-step explanation:

Make a proportion:

66/12 = (104-r)/r

Simplify:

r = 16

Goshia [24]3 years ago
7 0

Answer:

r=16

Step-by-step explanation:

16

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Please help, what is the slope?
NikAS [45]

Answer:

0

Step-by-step explanation:

i think sorry if wrong

7 0
3 years ago
Read 2 more answers
In circle O, m∠R = 30.8°. Find m∠NOQ.
nordsb [41]

Given:

In circle O, m∠R = 30.8°.

To find:

The m∠NOQ

Solution:

Central angle theorem: According to this theorem, the central angle is always twice of subtended angle on the same arc.

Angle NOQ and angle NRQ are on the same arc but ∠NOQ is the central angle and ∠NRQ is the subtended angle on the arc NQ.

Using central angle theorem, we get

m\angle NOQ=2\times m\angle NRQ

m\angle NOQ=2\times m\angle R

m\angle NOQ=2\times 30.8^\circ

m\angle NOQ=61.6^\circ

Therefore, m\angle NOQ=61.6^\circ.

4 0
3 years ago
marla has 4.55 in dimes and quarters. if she ha s7 more quarters than dimes, how many quarters doe she have?
Jlenok [28]

Answer:

number of dimes is 8

number of quarters is 15

Step-by-step explanation:

let 'd' = number of dimes

let 'd+7' = number of quarters

.10d + .25(d + 7) = 4.55

.10d + .25d + 1.75 = 4.55

.35d = 2.80

d = 8

q = 7 + 8

8 0
3 years ago
The owner of a large restaurant is considering a new “no tipping” policy and wants to survey a sample of employees. The policy w
Stolb23 [73]

A) The strata to be used in this survey by the employer is; <em><u>Type of Staff</u></em>

B) <em>Stratified Random Sampling</em> will be preferred because the opinions of <em><u>the staffs on the tipping policy</u></em> may be the same within each type but differ across the different <u><em>types of staffs.</em></u>

  • A stratified random sampling is a type of sampling that divides a population into groups known as strata.

Now, from the question, we see that after adding a 20% to the cost of food and beverages, that the additional revenue will be distributed equally among the kitchen and server staffs.

This means the strata here will be the type of staff because the opinions of the staffs on the tipping policy may be the within each type but differ across both types of staffs.

Read more at; brainly.com/question/1954758

7 0
2 years ago
How do you solve 18 - (-2)=
salantis [7]

Answer:

the answer would be 20

Step-by-step explanation:

so if 18-(-2)=?

two nwgatives make a positive. So the equation would turn into 18+2=20

Im not 100% if this is right but htis is how I was taught to do it.

3 0
3 years ago
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