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Taya2010 [7]
2 years ago
14

use a mental math strategy to find 4,290+3,602. explain how to check your answer using a different strategy.

Mathematics
1 answer:
Marianna [84]2 years ago
5 0
=7,892 , you could write out your numbers, then line them up to then add them.
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Question 18 plz help <3
Karolina [17]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
a snowplow has maximum speed of 40 miles per hour on a dry highway. It's maximum speed decreases by 1.2 miles per hour for every
vova2212 [387]

Step-by-step explanation:

The snowplow's speed is 40 mph minus the loss from the snow, which is 1.2 mph times the depth of snow in inches.

y = 40 − 1.2x

When y = 0:

0 = 40 − 1.2x

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x = 33 ⅓

The snowplow stops moving when the snow is 33 ⅓ inches deep or more.

8 0
3 years ago
Solve for x. x = log44
kkurt [141]
First, set the equation in exponential form. 
x=logbY  to  b^x=Y
x=log44.  so x=x, b=10, Y=44
10^x=44  
I know that 10^1=10, 10^2=100, and 10^1.5=31.6 so x should be between 1.5 and 2.
The answer is x=1.64.  


3 0
3 years ago
For what value of the constant c does the above equation have x = 2 as the only solution?
Stolb23 [73]
The answer is A, -41.
Substitution:
-8(2) - (-41)
-16 + 41
25.
Square root of 25 = 5.
5 = 4x - 3.
5 = 4(2) - 3
5 = 8 - 3
5 = 5.

8 0
2 years ago
What is the answer to 4/5w = 8
Leni [432]

Answer:

w = 10

Step-by-step explanation:

\frac{4}{5}w=8~(Given)\\\\\frac{5}{4}(\frac{4}{5}w)=\frac{5}{4}(8)~(Multiply~5/4~on~both~sides)\\\\w=10~(Simplify)

4 0
2 years ago
Read 2 more answers
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