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Natalka [10]
3 years ago
11

My last points to ask a question pls show work

Mathematics
2 answers:
BartSMP [9]3 years ago
6 0

Answer:

-9.5

Step-by-step explanation:

8.4×3=25.2

negative25.2- 5.7 equals negative 19.5 - 10. hey hi if my answer doesn't match with the answer in your book could you please tell me right away so that I can try another method or ask for help I would really like to help you bye.

const2013 [10]3 years ago
5 0

Answer:

14.  27

16.  170

Step-by-step explanation:

We must follow Order of Operations rules here.  Work inside parentheses must be done first, then exponentiation, then multiplication and division, and finally addition and subtraction.

((5·7) - (8·4))³ becomes (35 - 32)³, or 3³, or 27.

16.  7² + ((46 - 7·2) + 2³)² becomes 7² + ((46 - 49) + 8)²

Again, do the work inside parentheses first:

7² + (3 + 8)² becomes 49 + 11², or 49 + 121, or, finally, 170

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X+y+z=2<br> -x+3y+2z=8<br> 4x+y=4
olga nikolaevna [1]

Answer:

So what do you need help in plz

6 0
4 years ago
Write 24% as a reduced fraction
tekilochka [14]
6/25 or 6 over 25, however you wanna look at it!
3 0
4 years ago
What is the area of this trapezoid?
Alexandra [31]

Answer:

440cm²

Step-by-step explanation:

*Area= (a+b)/2×h

(19+25)/2*20

= _ * 440cm². *_

3 0
2 years ago
Joe works at YummyBurger. He earns a salary of $50 a day plus $0.05 for every super-sized value meal he sells. Nate works at Sup
Brums [2.3K]

Answer:

300 burgers

Step-by-step explanation:

You can set up an equation like this: 50+0.05x=20+0.15x

Then, subtract 0.05x from both sides: 50=20+0.10x

Subtract 20 from both sides: 30=0.10x

Divide by .10 on both sides: 300=x

X represents how many burgers must be sold for the boys to have earned the same amount of money, and that is 300 burgers.

7 0
4 years ago
Read 2 more answers
One eight-ounce glass of apple juice and one eight-ounce glass of orange juice contain a total of 183.0 milligrams of vitamin C.
uysha [10]

Answer:

Apple juice there are 95.9 mg

Orange juice there are 87.1 mg

Step-by-step explanation:

We can get a system of equations from the statement.

Let x be the amount of vitamin C in apple juice

Let y be the amount of vitamin C in orange juice

Now, with the statement we have to:

x + y = 183 (1)

2 * x + 3 * y = 453.1 (2)

We have an equation system, of 2 equations with 2 unknowns, that is, it has a solution.

If we multiply the first equation by 2 and subtract the second equation, we are left with:

2 * x + 3 * y - 2 * x - 2 * y = 453.1 - 2 * 183

Solving

y = 453.1 - 366

y = 87.1

Now to calculate x:

x + y = 183

x + 87.1 = 183

x = 183 - 87.1

x = 95.9

To check:

https://es.symbolab.com/solver/step-by-step/x%20%2B%20y%20%3D%20183%3B%202%5Ccdot%20x%20%2B%203%5Ccdot%20y%20%3D%20453.1

Therefore in apple juice there are 95.9 milligrams of vitamin C and in orange juice there are 87.1 milligrams.

8 0
4 years ago
Read 2 more answers
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