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Anvisha [2.4K]
2 years ago
10

A student must study for 20 to 30 hours a week to maintain their grade point average. If the

Mathematics
1 answer:
Leni [432]2 years ago
7 0
The answer would be [20/7,30/7]

That gives you an idea of how long each day the student must study in order to maintain their GPA
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Alex and Peter win some money and share it in the ratio 6:1. Alex gets £50 more than Peter. How much did they get altogether?
Alex Ar [27]
Alex = 6x
Peter = x

6x = x + 50
5x = 50
x = 10

Alex = £60
Peter = £10

together = £70
6 0
3 years ago
Read 2 more answers
FRÉD AND ETHEL WACHED TV FOR SEVERAL HOURS ONE AFTERNOON. THEY BEGAN AT 1:30 P.M AND CONTINUED WACHING TV FOR 3 HOURS AND 45 MIN
QveST [7]

30 + 45 =75
3 + 1 = 4
There are 60 minutes in one hour, so 75 minutes is equal to 1 hour and 15 minutes.

4 + 1 = 5
Their mom turned the TV off at 5:15.
7 0
3 years ago
Express the following numbers as a ratio between an integer and a natural number.
Julli [10]

Answer:

Step-by-step explanation:

a) 7/5, 3/10, -13/4,-27/1,0

b)36/1,-45/1,21/5, -4/5, 91/6,-2/9

5 0
2 years ago
Simplify. a2 · a5 a3 A) a3 B) a4 C) a7 D) a10
castortr0y [4]

a^{10}, that is D

when multiplying like variables add the exponents

= a^{2+3+5} = a^{10}


5 0
3 years ago
Read 2 more answers
how many pounds of nuts selling for $9 per lb and raisins selling for $3 per lb should a person combine to obtain 60 lb of a tra
marta [7]
Let n be the number of lbs of nuts.
Let r be the number of lbs of raisins.
9n + 3r = 60 * 5 = 300 .............(1)
n + r = 60
n = 60 - r ...............(2)
Plugging the expression for n in (2) into (1) we get:
9(60 - r) + 3r = 300
which expands to:
540 - 9r + 3r = 300 .............(3)
Simplifying and rearranging (3) we get:
-6r = -240
Therefore r, the weight of raisins = 40 lbs
and the weight of nuts is 60 - 40 = 20 lbs
8 0
3 years ago
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