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Aloiza [94]
3 years ago
8

What is the area of the triangle shown below?(please help, im trying to bring my grades up)​

Mathematics
2 answers:
inn [45]3 years ago
7 0

Answer:

5²+x² =13²

x². =169-25

x² =144

x. =√144

x. =12

area of the triangle=1/2×10×12

=60 units²

Tresset [83]3 years ago
3 0

Answer:

65 units²

Step-by-step explanation:

10 × 13 = 130

130 ÷ 2 = 65

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A store is selling a mixture of apple granola and blueberry granola for $6.99 per pound. Blueberry granola costs $8.99 per pound
Alik [6]

Answer:the number of pounds of blueberry granola that she should put in the mixture is 10 pounds.

the number of pounds of apple granola that she should put in the mixture is 20 pounds

Step-by-step explanation:

Let x represent the number of pounds of blueberry granola that she should put in the mixture.

Let y represent the number of pounds of apple granola that she should put in the mixture.

She wants to make a 30 pounds mixture. This means that

x + y = 30

A store is selling a mixture of apple granola and blueberry granola for $6.99 per pound. This means that the cost of the 30 pound mixture would be

30 × 6.99 = $209.7

Blueberry granola costs $8.99 per pound and apple granola costs $5.99. This means that

8.99x + 5.99y = 209.7 - - - - - - - - - -1

Substituting x = 30 - y into equation 1, it becomes

8.99(30 - y) + 5.99y = 209.7

269.7 - 8.99y + 5.99y = 209.7

- 8.99y + 5.99y = 209.7 - 269.7

- 3y = - 60

y = - 60/ -3

y = 20

Substituting y = 20 into x = 30 - y, it becomes

x = 30 - 20 = 10 pounds

7 0
3 years ago
The U.S. Senate has 100 members. After a certain​ election, there were 16 more Democrats than​ Republicans, with no other partie
mixer [17]

Answer:

34 Republicans 66 democrats

Step-by-step explanation:

so if there are 100 members evenly split, the 2 parties would each have 50

this is the starting point you add 16 to the democratic side resulting in 66 but then you take 16 from the Republican side making it 34

3 0
4 years ago
How do you solve -(-7) ​
tresset_1 [31]
The answer to -(-7) is 7
7 0
3 years ago
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a fair (6 sided) die is rolled TWO times. What is the probability that the first die is a 2 or the second die is a prime
alexdok [17]

Answer:

The probability that the first die is a 2 or the second die is a prime = 1/12

Step-by-step explanation:

It is given that,a fair (6 sided) die is rolled TWO times.

The sample space for rolling 2 dies

(1, 1), (1, 2) .......... (1,6)

(2,1) ..........................

.

.

(6, 1) ..........................(6, 6)

There are total of 6^2  = 36 sample space

<u>To find the probability</u>

The prime numbers from 1 to 6 are 2, 3 and 5

the  possible outcomes are(2,1), (2, 3) and (2, 5)

The probability that the first die is a 2 or the second die is a prime = 3/36 = 1/12

4 0
3 years ago
Use the law of sines to find m
Rufina [12.5K]

the answer is c. 40.5

5 0
3 years ago
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