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ivolga24 [154]
3 years ago
12

There are 120 Gr. a students at a local high school and

Mathematics
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

$180 was collected from Grade 9 students

Step-by-step explanation:

40% of 120 students is 48. This means that 48 students went. If half of these students paid half price, 24 students paid $2.50, and 24 students paid $5.00.

24 x 2.5 is 60

24 x 5 is 120

60 + 120 is 180, which is the total amount of money collected.

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mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for
frez [133]

mark must leave it for 5.5 months or 5 and half moths to gain 5600 in interest​ .

<u>Step-by-step explanation:</u>

Here we have , mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for the same length of time, We need to find how long must he leave it to gain 5600 in interest​ . Let's find out:

Let mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8% for time x months , So total interest gain is 5600 i.e.

⇒ \frac{8000(12)}{100}(x) +\frac{2000(8)}{100}(x) =5600

⇒ \frac{8000(12)+2000(8)}{100}(x) =5600

⇒ (80(12)+20(8))(x) =5600

⇒ (960+160)(x) =5600

⇒ (1020)(x) =5600

⇒ x =\frac{5600}{1020}

⇒ x =5.5

Therefore , mark must leave it for 5.5 months or 5 and half moths to gain 5600 in interest​ .

6 0
3 years ago
If a car salesman made $2450 from a 12% commission on a car sale, what is cost of the car he sold?
n200080 [17]

I believe it is 20,416.67

5 0
3 years ago
Read 2 more answers
2. Factorise: a - b - a + b2.square ​
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7 0
3 years ago
How do i write log 4^2=16 in logarithmic form
ohaa [14]
Log16 4 = 2      
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7 0
3 years ago
You are looking at two area rugs for your bedroom. One is a square with a side length of 6.3 feet. The other is a rectangle that
Dmitry [639]
-----------------------------------------------------------------
Square Rug
-----------------------------------------------------------------
Area = Length x Length
Area = 6.3 x 6.3
Area = 39.69 ft²

-----------------------------------------------------------------
Rectangle Rug
-----------------------------------------------------------------
Area = Length x Width
Area = 4.8 x 8.2
Area = 39.36 ft²


39.69 ft²  is bigger than 29.36 ft², so the square rug is bigger.

-----------------------------------------------------------------
Ans: The Square Rug covers a greater area
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8 0
3 years ago
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