CAN SOMEONE HELP ME WITH THIS PROBLEM

Mathematics

2 answers:

Aliun [14]3 years ago

4 0

Sorry I can’t buddy........................................................:(

Sladkaya [172]3 years ago

3 0

Answer:

X = 14

Step-by-step explanation:

First you want to look at the scale ratio to find what the length actually is. So B is 7 times larger then A. So then you want to divide the length of B's side by 7 to find the actual size of As.

28 / 7 = 4

So now that you know the actual length is 4 you can write it into the following equation,

x - 10 = 4

Then you just solve for X

x - 10 = 4

+10 +10

x = 14

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PLEASE HELP ME! :(

snow_lady [41]

Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43

Now do the rest on your own!

5 0

3 years ago

The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i

Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$