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Art [367]
2 years ago
11

(PLEASE HELP ASAP!!)

Mathematics
2 answers:
AysviL [449]2 years ago
7 0

I believe the answer is 21. I can tell you how I got the answer if you want.

Jet001 [13]2 years ago
4 0
2/5 x 70 = 28
1/4 x 28 = 7
28 - 7 = 21
ANSWER: 21
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Which is the equation of a line that passes through (1,8) and (6,4)
Sati [7]

Answer:

<em>y = - </em>\frac{4}{5}<em> x + </em>\frac{44}{5}<em> </em>

Step-by-step explanation:

(6, 4)

(1, 8)

m = \frac{8-4}{1-6} = - \frac{4}{5}

y - 4 = - \frac{4}{5} ( x - 6 )

<em>y = - </em>\frac{4}{5}<em> x + </em>\frac{44}{5} ⇔ y = - 0.8x + 8.8

8 0
3 years ago
Find the value of y if given: 20y-2, 17y +3, 5x + 8, 21x
rodikova [14]
<span>20y-2=
20y=2
20y/20=2/20
y=0.1

</span>17y +3<span>=
</span><span>17y=-3
17y/17=-3/17
y=-0.176

</span>
7 0
3 years ago
PLZ HELP AND EXPLAIN !! Arron borrowed $200 from his cousin. He promised to repay the loan in 2 years at a simple annual interes
Dmitriy789 [7]
The first thing you have to do is know the equation. The equation is a(1+p)^t.
a= the amount of money p= the percent represented as a decimal and t=time ( the t is raised as an exponent)
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200(1.05)^2
200(1.1025)
220.5 That is how much extra he would owe in interest fee's

5 0
3 years ago
Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m
Anastaziya [24]
The equation will be of the form:
A(t)= A_{0} e^{rt}
where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:
40=320e^{3r}
Rearranging and taking natural logs of both sides, we get:
ln\ 0.125=3r
r=\frac{ln\ 0.125}{3}=-0.693
The required model is:
A=A _{0} e^{-0.693t}
3 0
3 years ago
Let me help you out have some points <br> and wash your hands
worty [1.4K]

Answer:

Thank you have fun in quarantine

7 0
3 years ago
Read 2 more answers
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