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Eva8 [605]
2 years ago
12

A student is finding the measures of the angles in a triangle that have the ratio 4:4:7. Find the mistake and correct it.

Mathematics
1 answer:
7nadin3 [17]2 years ago
8 0

suppose 4:4:7 be 4x, 4x, 7x

or, 15x = 180°

or, X = 180/15

or, X = 12

therefore,

4x = 4x12= 48

4x= 4x12= 48

7x= 7x12= 84

so if you plus all of them you get 180

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Peter won £45 as a price. He gave 4/5 of the money to Roger and Bethan. Rogers and Bethan shared the money in the ration 2:3. Wo
Aleksandr-060686 [28]
45
36 to R AND B
36/5=7.2
7.2x2=14.4 for Roger
7.2x3=21.6 for Bethan
6 0
3 years ago
A store pays $120 for a television. The store sells the television for $300. What is the percent of the markup
marta [7]

Answer: 150%

Step-by-step explanation:

A store buys a television for $120.

The store then sells the television for $300.

The makeup is the amount they increased the cost price by to get to the selling price.

= 300 - 120

= $180

In percentage terms it is:

= 180/120 * 100%

= 150%

8 0
3 years ago
The quotient of x miles and 8 hours<br> is 55 miles per hour.
Dahasolnce [82]
X is equal to 440
440/8=55
3 0
3 years ago
1 point
tekilochka [14]

Answer:

$6.03

Step-by-step explanation:

Let's begin by listing out the given variables:

height (h) = 12 cm, diameter (d) = 8 cm, r = d ÷ 2  ⇒ r = 4 cm, cost of coconut oil (c) = $0.01 /cm³

The formula of cylinder is given by:

V = πr²h = π * 4² * 12 = <u>603.1858 cm³</u>

cost of filling the tin can with coconut oil = cost of coconut oil * Volume of cylinder

Cost = c * V = 0.01 * 603.1858

Cost = $<u>6.03</u>

5 0
3 years ago
Kenji earned the test scores below in English class.
lutik1710 [3]

Answer:

mean=87

median=87

Step-by-step explanation:

mean=sum of test score/number of subject

mean=79+91+93+85+86+88/6

mean=522/6

mean=87

Literal meaning of median is medium.

To find the number which lies in the medium, we must rearrange the number in ascending.

79, 91, 93, 85, 86, 88

79, 85, 86, 88, 91, 93

86+88/2=87

Hope this helps ;) ❤❤❤

Let me know if there is an error in my answer.

7 0
3 years ago
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