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ladessa [460]
2 years ago
12

What mistake did this student make?

Mathematics
2 answers:
Vilka [71]2 years ago
6 0
The answer is 3) the 1st equation should have been multiplied by 2
Gnoma [55]2 years ago
5 0

Answer:

3. the 1st equation should have been multiplied by 3

You might be interested in
If a=12, b=24 and c=42 what is a times b-ca
liq [111]
The answer is -5760
12(24-42(12))
12(24-504)
12(-480)
-5760
I hope this helps!
4 0
3 years ago
Anna and Betty share 24 sweets in the ratio 3:5. How many sweets do they get each?
Alborosie

Answer:

Anna  9 and Betty 15

Step-by-step explanation:

sum the parts of the ratio , 3 + 5 = 8 parts

divide number of sweets by 8 to find value of one part of the ratio

24 ÷ 8 = 3 ← value of 1 part of the ratio , then

3 parts = 3 × 3 = 9

5 parts = 5 × 3 = 15

Anna gets 9 sweets and Betty gets 15

3 0
3 years ago
Which polynomials are in standard form?
tankabanditka [31]

Answer:

A. x^2 + 3x + 2

D. 3x^4 + 4x^3 - 3x^2 - 1

E. 3t^3 + 3t^2 + 2t

Step-by-step explanation:

Standard form is where the equation is set up so that the exponents decrease from left to right, and where you put a number with no variable or exponent last.

5 0
3 years ago
Read 2 more answers
35 points please answer pls pls pls
Sati [7]

Step-by-step explanation:

28. a=422000 (1+12%)^8

=1044856.46

29 a=13000 (1+15%)^-5

=6463.29

30 a=1250 (1+8%)^11

=2914.548

using compound interest formula

5 0
3 years ago
SOMEONE HELP PLS ILL GIVE BRAINLIEST FOR CORRECT ANSWER !
Tamiku [17]

Answer:0.231

Step-by-step explanation:

3 0
3 years ago
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