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bagirrra123 [75]
3 years ago
7

Leona answered all the questions on a test. She had 90% of them correct. There were 40 questions in all. How many did she have c

orrect?
\text{Explain with detail}
Mathematics
1 answer:
KengaRu [80]3 years ago
6 0

Answer:

The answer is 36

Step-by-step explanation:

Let the number be <em>x</em>

x/40 is her mark

she got 90% mark correct

x/40 x 100 = 90

by cancellation we get 9 x 4 = 36

HOPE THIS HELPS

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Apples: $(2x) per pound
Ludmilka [50]

Answer:

Shopper spend $3 on Apples, $4 on Grapes and $3.5 on Oranges

Step-by-step explanation:

Cost of one pound of Apple = $2x

Cost of one pound of Grapes = $(6x-5)

Cost of one pound of Oranges = $(x+2)

A shopper purchases one pound each of  apples, grapes, and oranges and spends  $10.50.

It can be written as: 2x+6x-5+x+2=10.50

We need to find how much the shopper spend on each fruit.

First we need to find value of x by solving equation

2x+6x-5+x+2=10.50

Solving:

2x+6x+x+2-5=10.50\\9x-3=10.50\\9x=10.50+3\\9x=13.5\\x=\frac{13.5}{9}\\x=1.5

The value of x is: x=1.5

Now finding cost of one pound each fruit by putting x=1.5

Cost of one pound of Apple = $2x = 2(1.5) = $3

Cost of one pound of Grapes = $(6x-5) = (6(1.5)-5)= $4

Cost of one pound of Oranges = $(x+2)=(1.5+2)=$3.5

So,

Cost of one pound of Apple  = $3

Cost of one pound of Grapes = $4

Cost of one pound of Oranges = $3.5

So, shopper spend $3 on apples, $4 on Grapes and $3.5 on Oranges

3 0
2 years ago
A copy machine makes 44 copies per minute. How long does it take to make 209 copies
kipiarov [429]

Answer:

5 minutes.

44 x 5 = 220,

since 44 x 4 = 176 < 209

7 0
1 year ago
Fine fare sells apple juice boxes in packages of 4 juice boxes for $2.00. What is the unit price of each juice box
Zinaida [17]

Answer:

its 8 because if you do 4 times 2 equal 8

4 0
3 years ago
Tickets to a movie cost $8 each. Write an equation for the function that gives the total cost y in dollars for an order of x tic
yanalaym [24]
The equation is most likely y=8t+x
7 0
3 years ago
Math sucks please help ​
eduard

Answer:

120

Step-by-step explanation:

5 0
2 years ago
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