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butalik [34]
2 years ago
7

Which expression is equivalent to 4x2−(8x−4x2)+5+(4x−10)?

Mathematics
2 answers:
arlik [135]2 years ago
6 0

um none of the above

u see

−4x+11 is the answer

aivan3 [116]2 years ago
4 0
As we look at the question Answer is :12x +15
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A store sells bread and milk. On Tuesday, 3 loaves of bread and 2 litres of milk were sold for €6.25. On Thursday
chubhunter [2.5K]

Equation is 4b + 5m = €10.90, and values of b and m are €1.35 and €1.1 respectively.

Step-by-step explanation:

  • Step 1: Find equation for Thursday's sales.

Given b = price of a loaf of bread and m = price of one liter of milk

Total sales = €10.90

Equation ⇒ 4b + 5m = €10.90

  • Step 2: Find the values of b and m.

3b + 2m = 6.25 ----- (1)

4b + 5m = 10.90 ---- (2)

Multiply eq(1) by 5 and eq(2) by 2 to make coefficients of m equal.

15b + 10m = 31.25

8b + 10m = 21.8

Subtract eq(2) from eq(1)

⇒ 7b = 9.45

⇒ b = 9.45/7 = €1.35

Substitute for b and find m using eq(1).

⇒ 3 × 1.35 + 2m = 6.25

⇒ 4.05 + 2m = 6.25

⇒ 2m = 2.2

∴∴ m = 2.2/2 = €1.1

8 0
3 years ago
What is<br> -15 times the square root of 10 divided by 9? And whats the square root of that answer?
morpeh [17]
Ans: About 2.30

-15 x 3.16 / 9 = x sqrt

-15 x 3.16 = - 47.4

-47.4 / 9 = -5.27

-5.27 sqrt = About 2.30


Hope this helped :)
6 0
3 years ago
Evaluate the expression when m=4 and n=48
andrew-mc [135]
What’s the expression
3 0
3 years ago
PLEASE HELP!!!! THIS IS TIMED!!!!! PLEASE HELP ME!!!!! PLEASE!!!!!!!!!!!!!!!
kodGreya [7K]
1 is the answer!
good luck
5 0
3 years ago
Read 2 more answers
EMERGENCY!!!!!!!! I need help right now please
erastova [34]

Answer:

50 Degrees

Step-by-step explanation:

Since they already have 40 degrees for you, and a little square means a right angle (90 Degrees), then 40 + 90 is 130. The interior angles of a triangle always add up to 180, so 180 - 130 is 50. The answer is therefore 50 degrees.

3 0
3 years ago
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