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Kisachek [45]
3 years ago
13

Pls help with 7-9. pleaseeee pleaseeee

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

Answer:

Step-by-step explanation:

7. One transformation

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Find the product. Tell what strategy you used. 8×25×23=
Novosadov [1.4K]
The answer is4600. I got this by multiplying 25 and 23 which is 575 then you multiply that by 8 which gives you 4600.

5 0
3 years ago
Ayanna is 3 years older than Brittany. The sum of 3 times Brittany's age and 2 times Ayanna's age is 76. How old are Ayanna and
Alex_Xolod [135]
Ayanna is 17 and Brittany is 14.

To find this, let's write two equations using the given information.

a = b + 3
3b + 2a = 76

Now, just substitute the first equation into the second and solve.

3b + 2(b + 3) = 76
3b + 2b + 6 = 76
5b = 70
b = 14

If Brittany is 14, then Ayanna is 3 years older at 17.
7 0
3 years ago
In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year. what integer represents the tota
mixer [17]

we are given

In A 4 year period, About 80,000 acres of coastal wetlands in United States are lost each year.

so, total area =80000 acres

total time = 4 years

now, we can use formula

total change in wetlands = ( total area)/(total time)

now, we can plug values

total change in wetlands is

=\frac{80000}{4} acre/year

=20000 acre/year................Answer


3 0
3 years ago
-(5a+6)=2(3a+8) what is the answer
ValentinkaMS [17]

Answer:

a = -2

Step-by-step explanation:

-(5a+6)=2(3a+8)

-5a -6 = 2*3a +2*8

-5a -6 = 6a +16

-5a -6a = 16+6

-11a = 22

a= -22/11

a = -2

4 0
3 years ago
In a seventh grade class, 14 out of 30 students are boys. In simplest terms, what is the ratio of the number of boys to the numb
Grace [21]
14 boys : 16 girls

but this would have to be simplified also

7:8
5 0
3 years ago
Read 2 more answers
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