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aalyn [17]
3 years ago
9

Xiao teacher asked him to rewrite the sum 60+90 as the product of the GCF of the two numbers and a sum Xiao wrote 3(20+30) what

mistake did xiao make how should he have written the sum
Mathematics
1 answer:
GrogVix [38]3 years ago
8 0
The\ mistake:GCF(60;\ 90)\ isn't\ 3\ just\ 30.\\\\Correct\ answer:60+90=30(2+3)
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Anita Read 24 Pages Of Her Book In 12 Minutes . How Long Will It Take Her To Read 34 Pages ?
Digiron [165]
17 minutes In order to solve this you make a porportion: 24/12=34/x You do (34×12)÷24 34×12=408 408÷24= 17 ~JZ Hope IT helps you
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3 years ago
12x - 84 = 4x + 12. What does X equal?
Vesnalui [34]

Answer:

12

Step-by-step explanation:

To solve the problem, you have to leave the x alone,

To do so, you have to add 84 on each side

12x = 4x + 96

Then, subtract 4x on each side,

8x = 96

Then divide each side by 8, so

x = 12

Hope it helps!!

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8 0
3 years ago
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What does 18 tens and 20 ones equal
Rudiy27
18 tens= 180
20 ones= 20
180+20= 200
200
6 0
3 years ago
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HELP DUE IN 10 MINS!!
fredd [130]

Answer:

  • D. No, they are not similar.

Step-by-step explanation:

<u>Check the ratio of the two given sides:</u>

  • MV/VT = 21/49 = 3/7
  • LV/VU = 8/28 = 2/7

Ratios are different so the triangles are not similar

Correct choice is D

5 0
3 years ago
System of Equations <br> Need help<br> Trig
Yanka [14]

Looks like the system is

\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}

We can eliminate y by taking

(3x+2y+5z)-2(-2x+y+6z)=16-2(1)

\implies3x+2y+5z+4x-2y-12z=16-2

\implies7x-7z=14

\implies x-z=2

so that z=x-2, and

(7x+3y-4z)-3(-2x+y+6z)=11-3(1)

\implies7x+3y-4z+6x-3y-18z=11-3

\implies13x-22z=8

Substitute z=x-2 into this last equation and solve for x:

13x-22(x-2)=8

\implies13x-22x+44=8

\implies-9x=-36

\implies x=4

Then

z=x-2

\implies z=4-2

\implies z=2

Plug these values into any one of the original equation to solve for y:

-2x+y+6z=1

\implies-2(4)+y+6(2)=1

\implies-8+y+12=1

\implies y=-3

Hence the solution is x = 4, y = -3, and z = 2.

6 0
3 years ago
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