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givi [52]
3 years ago
9

Which expression is equivalent to 56 + 21? 7(49 + 14) 8(7 + 21) 8(48 + 13) 7(8 + 3)

Mathematics
1 answer:
Artemon [7]3 years ago
3 0

The correct answer is D. 7(8+3)
Use the distributive property.
7*8=56
7*3=21
56+21
Hope this helps!
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Gavin likes biking. He never misses a chance to go for a ride when the weather is nice. This week his goal is to bike about 65 t
kvv77 [185]

Answer:

Total Miles he  drives first day      = 8 miles

Total Miles he drive second day   = 12miles

Total Miles he drives third day    =    18miles

Total Miles he drives fourth day    =  27 miles

Step-by-step explanation:

This is a problem of linear equations in 1 variable:

The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.

It is given in the question that ,

This week his goal is to drive bike about 65 total miles over four days. Each day, he wants to ride 1.5 times as far as he rode the day before.

Let, on the first day, he drives x miles. On second day, he drives 1.5x. On the third day, he drives 1.5(1.5x) and on the fourth day, he drives 1.5(1.5(1.5x)).

So the equation is :

x +1.5x + 1.5(1.5x) + 1.5(1.5(1.5x)) = 65miles

x + 1.5x + 2.25x + 3.375x   = 65miles

            8.125x   =    65 miles

                  x   =  65/8.125  miles

                  x   = 8 miles

so after solving the equation we get, on the first day Gavin drives 8 miles

similarly, on the second day he drives 12miles

               on third day 18 miles

   and     on the fourth day  27miles

more about linear equations in one variable at:

brainly.com/question/17139602

#SPJ10

4 0
2 years ago
A polynomial has zeros x=0, x= -3, X = 4. What are some possible factored equations for this fourth degree polynomial.
kati45 [8]

Answer:

x^{2} (x + 3)(x - 4)

Step-by-step explanation:

You can multiply this out to get the full equations.

It's to the 4th degree so the x on the outside has to be squared to add the fourth degree.

To get other zeros:

x + 3 = 0

x = -3

x - 4 = 0

x = 4

Hope this helped. :0)

5 0
3 years ago
Need help please! i’m stuck
lorasvet [3.4K]

Answer:

Step-by-step explanation:

stuck under the bed??

lemme jus quickly pull you back....lol

4 0
3 years ago
A random selection of plants receiving two different types of treatments is measured for growth. The growth of the plants in eac
LenaWriter [7]

Plant with treatment A in general grow more than plants with treatment B.

Picture below.

6 0
3 years ago
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TIMED, need the answer ASAP, will give brainiest
ololo11 [35]
I think it's four?...
6 0
3 years ago
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