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Anvisha [2.4K]
3 years ago
6

If a+e = 11a²-f=15f+c=6c×a-e=13what is the value of the variables​

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

a=4

c=5

e=7

f=1

Step-by-step explanation:

the simplest method would be to start with a(2)"squared" (being '4' as this will get you closest to 15. So 16 -1 (being 'c') = 15. now plug those into the other equations and work the other numbers out.

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Please help !! <br> basic triangle proofs
jeka57 [31]

Answer:

AD=AC (as D is midpoint to from line AC the line AD=AC

Step-by-step explanation:

HENCE PROVED

8 0
3 years ago
Can someone please help me
Zina [86]
A. You would use base*height (bh). You would multiply 4 and 5. The answer is 20in.

B. It would be 1/3*bh. The answer would be 6.6.
7 0
3 years ago
A shirt costs $5 less than a sweater. Together they cost<br> $25. How much does the sweater cost?
Aleksandr-060686 [28]

Answer:

Shirt: $7.5

Sweater: $17.5

Step-by-step explanation:

25/2=12.5

Shirt is 5 less than Sweater

12.5-5=7.5

Add 5 to sweater cost

12.5+5=17.5

Shirt=7.5 Sweater=17.5

17.5+7.5=25

6 0
3 years ago
Eliza started her savings account with $100. Each month she deposits $25 into her account. Determine the average rate of change
Afina-wow [57]
First, lets create a equation for our situation. Let x be the months. We know four our problem that <span>Eliza started her savings account with $100, and each month she deposits $25 into her account. We can use that information to create a model as follows:
</span>f(x)=25x+100
<span>
We want to find the average value of that function </span>from the 2nd month to the 10th month, so its average value in the interval [2,10]. Remember that the formula for finding the average of a function over an interval is: \frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1} }. So lets replace the values in our formula to find the average of our function:
\frac{25(10)+100-[25(2)+100]}{10-2}
\frac{350-150}{8}
\frac{200}{8}
25

We can conclude that <span>the average rate of change in Eliza's account from the 2nd month to the 10th month is $25.</span>
6 0
3 years ago
Find the slope of the line
Law Incorporation [45]

Answer:

-2

Step-by-step explanation:

y =  - 2x

the line is going down meaning its a negative and to find the slope do rise over run

4 0
3 years ago
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