All categories

4 years ago

Explain how finding 7x20 is similar to similar to finding 7x2000.then find each product

2 answers:

8 0

They are both the same because each answer just has more zeros.7x20=140 7x2000=14000 P.S help from 7x2 =14 just add zeros

notka56 [123]4 years ago

7 0

They are both similar because you just have to multiply 7 x 2 and then add the zeros. 7 x 20 is 140 and 7 x2000 is 14000

You might be interested in

As part of a screening process, computer chips must be operated in an oven at 145 °C. The starting temperature is 25 °C. After 1

DaniilM [7]

Answer:

30 minutes will it take to reach its specified operating temperature from 25°C.

Step-by-step explanation:

Initial Temperature of oven = 25°C

Time taken by oven to reach 85°C temperature = 15 minutes

We have to find time taken by oven to reach at temperature of 145°C

Increase in temperature in 15 minute = 85 - 25 = 60°C

So, Time take by oven to increase 60°C temperature = 15 min

Time take by oven to increase 1°C temperature = $\frac{15}{60}=\frac{1}{4}\:minutes$

Temperature we have to increase = 145 - 25 = 120°C

Time take by oven to increase 120°C temperature = $\frac{1}{4}\times120=30\:minutes$

Therefore, 30 minutes will it take to reach its specified operating temperature from 25°C.

4 0

4 years ago

What is the percent increase of 10 to 12

marta [7]

So what I do was 10 divided by 10 which is 1 and 1 is 10% of 10 so since the increase is by 2 multiply the 10% by 2 so the increase is 20 percent

6 0

4 years ago

Read 2 more answers

The basic formula for the price elasticity of demand coefficient is

Ivenika [448]

Basic formula for the price elasticity of demand coefficient is on this webside:

http://www.economicsdiscussion.net/price-elasticity-of-demand/price-elasticity-of-demand-with-formula/25223

3 0

3 years ago

Which rays form the sides of IHG? PLZ HELP FAST

mario62 [17]

C and F are the answers, im pretty sure

i got you

4 0

3 years ago

Solve each system using elimination. tell whether the system has one solution, infinitely many solutions, or no solution.

Tomtit [17]

1.
$x-2y=-1 \\
2x+y=4 \ \ \ |\times 2 \\ \\
x-2y=-1 \\
\underline{4x+2y=8 \ } \\
x+4x=8-1 \\
5x=7 \\
x=\frac{7}{5} \\
x=1 \frac{2}{5} \\ \\
x-2y=-1 \\
\frac{7}{5}-2y=-1 \\
-2y=-1-\frac{7}{5} \\
-2y=-\frac{5}{5}-\frac{7}{5} \\
-2y=-\frac{12}{5} \\
y=\frac{6}{5} \\
y=1 \frac{1}{5} \\ \\
\boxed{(x,y)=(1\frac{2}{5}, 1 \frac{1}{5}) \Leftarrow \hbox{one solution}}$

2.
$x+3y=4 \ \ \ |\times 2 \\
2x-6y=8 \\ \\
2x+6y=8 \\
\underline{2x-6y=8} \\
2x+2x=8+8 \\
4x=16 \\
x=4 \\ \\
x+3y=4 \\
4+3y=4 \\
3y=4-4 \\
3y=0 \\
y=0 \\ \\
\boxed{(x,y)=(4,0) \Leftarrow \hbox{one solution}}$

3.
$y=-\frac{1}{2}x-3 \ \ \ |\times (-2) \\
x+2y=-6 \\ \\
-2y=x+6 \\
\underline{x+2y=-6 \ } \\
x=x+6-6 \\
x-x=6-6 \\
0=0 \\ \\
\boxed{\hbox{infinitely many solutions}}$

4.
$6x-3y=-18 \\
-2x+4y=18 \ \ \ |\times 3 \\ \\
6x-3y=-18 \\
\underline{-6x+12y=54} \\
-3y+12y=54-18 \\
9y=36 \\
y=4 \\ \\
6x-3y=-18 \\
6x-3 \times 4=-18 \\
6x-12=-18 \\
6x=-18+12 \\
6x=-6 \\
x=-1 \\ \\
\boxed{(x,y)=(-1,4) \Leftarrow \hbox{one solution}}$

3 0

3 years ago