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solmaris [256]
3 years ago
10

Given that 7x - 3y = 23

Mathematics
1 answer:
Triss [41]3 years ago
7 0
7x - 3(-2) = 23
7x - - 6 = 23 (two minuses make a plus)
so it’s gonna be 7x + 6 = 23
Now you have isolate you x, so move everything else to the other side, but remember to change your sign when transferring to the other side

7x = 23 - 6
7x = 17
To isolate x in this multiple, you divide by 7 (because the inverse of multiplication is division)
x = 17/7
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Jacie can swim 3/4 of a mile in 3/8 of an hour.how far can she swim in one hour?
Vladimir [108]

Answer:

2 miles

Step-by-step explanation:

convert 3/4 into 6/8. With this you have a ratio of 6/8 miles to 3/8 hours. Meaning 2/8 mile is equal to 1/8 of an hour. With this you can find that Jacie can swim 2 miles in a hour



8 0
3 years ago
Allan borrows 1870 dollars from his uncle. Two years later, he borrows another 1240 dollars. If his uncle charges him 8 percent
Anna11 [10]
For t=0
<span>Allan borrows--------------------------- > 1870 dollars

for t=6 years
</span>F1 = P*(1 +(r/m))^n
i=r/m
n=m*t---------- >1*6=6
we have
P1=1870
r=8%
m=1
t=6 years
F1 = 1870*(1 +(0.08/1))^6------------------ >2967.45 dollars

for t=2
Allan borrows--------------------------- > 1240 dollars

for t=6 years
F2 = P2*(1 +(r/m))^n
i=r/m
n=m*t---------- >1*4=4
we have
P2=1240
r=8%
m=1
t=4 years------------> (6-2)=4 years
F2 = 1240*(1 +(0.08/1))^4------------------ >1687 dollars

F1+F2=2967.45+1687=4654.45 dollars
the answer is 4654.45 dollars


3 0
3 years ago
EXPERT ONLY HELP: I'LL GIVE BRAINLIEST: EXPLAIN YOU ANSWER<br> A or C
RideAnS [48]

Answer:

Its A : 1188

Step-by-step explanation:

Because you have two heights 5 and 6 so add them together

5+6 = 11

then to get the volume you have to multiply length (9) , height (11), and width (12) to get the answer so..

11 x 12 x 9=1188

5 0
3 years ago
Read 2 more answers
Some one help me before I fail this class.
hichkok12 [17]

35 because you can not multiply both numbers by the same number to get a smaller Greatest common multiple

4 0
3 years ago
Work out angle a with the sine rule please help will give u brainlest
Alisiya [41]

48.8052 or 131.195 ° degrees is the answer for angle A

5 0
3 years ago
Read 2 more answers
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