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2 years ago

Can anyone help me with 12 and 13

Mathematics

1 answer:

alina1380 [7]2 years ago

8 0

12. Answer is 70. 110+30=140/2=70
13. X=20. Correct

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Look to make 10 ones or 10 tens to solve 36+23+17

Juliette [100K]

I don't know what you are asking for the first part of the question but 36+23+17 = 76

Hope this helped a little! :)

4 0

2 years ago

unit 8: right triangles & trigonometry homework 7: law of cosines ! It’s due tomorrow just questions 1-4

ycow [4]

Wheres the question?

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2 years ago

Given: circle k(O), diameter US, measure of arc RU=50, measure of arc UT=30

sleet_krkn [62]

Answer:

angle RUS = 65 degrees

angle STU = 90 degrees

Step-by-step explanation:

(a) find angle RUS

Given arc RU = 50 degrees, so angle RSU = 50/2 = 25 degrees

Since US is the diameter,

angle URS is a right-angle.

Consider triangle RUS,

sum of angles of a triangle = 25+90+RUS = 180

solve for

RUS = 180 - 25 - 90 = 65 degrees.

(b) Find STU

All diameters span a right angle at the circumference,

since we're given US is a diameter, this means that

angle STU is a right angle.

3 0

2 years ago

Car A travels 702 miles on 12 gallons of gasoline car b travels 873 miles and 15 gallons of gasoline David wants to buy a car wi

Assoli18 [71]

David should buy Car A because it covers more miles in one gallon than Car B

Step-by-step explanation:

Given

Distance traveled by Car A = $d_A = 702\ miles$

Gallons used by Car A = $g_A = 12$

Distance traveled by Car B = $d_B = 873\ miles$

Gallons used by Car B = $g_B = 15$

In order to find the distance traveled on one gallon, we will divide the total distance by number of gallons

So,

Distance traveled by Car A in one gallon = $\frac{702}{12} =58.5\ miles\ per\ gallon$

Distance traveled by Car B in one gallon = $\frac{873}{15} = 58.2\ miles\ per\ gallon$

We can see that Car A travels more distance in one gallon that is 58.5 miles per gallon

So,

David should buy Car A because it covers more miles in one gallon than Car B

Keywords: Fractions, Unit rate

Learn more about unit rate at:

#LearnwithBrainly

6 0

2 years ago

Customers at an ice-cream shop took a survey. The results showed that 144 customers rated the shop as being "very satifactory."

vodomira [7]

The total number of customers who took the survey was 320. You can write it out like this :
45 144
—- = ——
100 ?
Then you can cross multiply (144 x 100 = 14,400) then divide that answer by 45 (14,400 \ 45 ) The answer you get it 320!!

7 0

2 years ago