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KIM [24]
3 years ago
15

Value expression 5×4-10×5\-2

Mathematics
1 answer:
rodikova [14]3 years ago
4 0
I think -45 is the answer.
 remember to always used PEMDAS
5x4 is 20 and 10x5 is 50 and 50 divided by -2 is -25 
20 - (-25) = -45

I'm not sure its completely right but i hope this at least helps guide you, if all else fails uses a calculator. 
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In ΔOPQ, the measure of ∠Q=90°, PO = 97, OQ = 65, and QP = 72. What is the value of the tangent of ∠O to the nearest hundredth?
garri49 [273]

Answer: 1.11

Step-by-step explanation:

with tangent I guess A+B=C, B goes over A. But like I bet you're wondering how will yk which is a or b? idk either, but I tried my luck and got it right. So yk how C (hypotenuse) is always the biggest number? Well whichever number is bigger (A or B) the bigger number will go over the smaller one and then you round it to the nearest hundredth. I'm not good at rounding, so I used Math//way to get it for me. So it could be like , 12+36=40 (just picking random numbers), 36 will go over 12. And then you round it. I hope thus makes sense, it's 5:40AM rn. I should be sleep  because I have a job interview at 3PM today.

3 0
3 years ago
Which strategy best explains how to solve this problem? Rebecca bought a meal and two snacks for lunch each day. The meal cost $
Fittoniya [83]
Given:
Cost of lunch per day = 1 meal and 2 snacks

C = 5.5 + 2(0.75) = 5.5 + 1.5 = 7

7 * 12 days = 84

Based on the choices, the best strategy would be:

<span> A. Make a table. Write the numbers 1 to 12 in the top row of the table (the number of days). In the first box on the second row, write $7. This is how much Rebecca spends in 1 day. In each of the next boxes in the second row, write the amount Rebecca spends by adding $7 to the previous amount. The answer in box 12 is the total amount Rebecca spent after 12 days.</span>

6 0
3 years ago
A baseball team played 154 regular season games. The ratio of the number of games they won to the number of games they lost was
faltersainse [42]

a.

Let

5x = number of games won

2x = number of games lost

The total number of win and lose is 154. So

5x + 2x = 154

Solving for x,

7x = 154

x = 22

Therefore, the number of games won is 5*22=110 and the number of games lost is 2*22 is 44.

b.

Let

6x = first side of the triangle

7x = second side of the triangle

9x = third side of the triangle

The perimeter of a triangle is the total of all sides. So,

6x + 7x + 9x = 88

22x = 88

x = 4

Therefore, the three lengths of the side are 6*4=24, 7*4=28, and 9*4 = 36

Read more on Brainly.com - brainly.com/question/872209#readmore

6 0
4 years ago
Which method listed below could not be used to prove that two triangles are congruent? Why?
OLEGan [10]
I think it is D hope it works
8 0
3 years ago
What is halfway between 1/3 and 1/2
docker41 [41]
First, divide 1 by 3 and 1 by 2.

1 divided by 3 = <span>0.33333333333

1 divided by 2 = 0.5

Add them up. </span>0.33333333333 + 0.5 = <span>0.83333333333.

Divide </span>0.83333333333 by 2, since there are 2 numbers we added up. 0.83333333333 / 2 = 0.41666666666, and <span>0.41666666666 as a fraction is 5/12.</span>
4 0
4 years ago
Read 2 more answers
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