All categories

3 years ago

Andrew took a math test with 40 questions. If he scored an 85% how many questions did he get correct

Mathematics

2 answers:

almond37 [142]3 years ago

6 0

Answer:

Step-by-step explanation:

1.) First, you have to turn 85% into a decimal

2.)That would be .85

3.) Then you have to multiply 40 by .85

4.) You get 34

jolli1 [7]3 years ago

3 0

Answer:

100 possible points divided by the #of questions equals 2.5 / 85% divided by 2.5 = 34

Step-by-step explanation:

You might be interested in

For f(x) = 2x+1 and g(x) = x2 - 7, find (f+ g)(x).

____ [38]

Answer:

the answer is A. it good answer

5 0

2 years ago

Solve for the missing side to the nearest tenth. 16 30 X =

Mrrafil [7]

Answer: x=32

Step-by-step explanation:

Because a triangle is 180°, the missing angle in the triangle would be 60°.

Because of the 30°-60°-90° angles theorem, The side opposite 90° is double the side opposite 30°, which means that x=32.

3 0

3 years ago

9. The cost of 20 litres of petrol is £18 Work out the cost of 1 litre of petrol.

yulyashka [42]

Answer:

20 x 1 / 18= 1.11

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

-16 + x = -15 CAN SOMEONE HELP ME PLEASE

Maksim231197 [3]

Answer: x= 1

Step-by-step explanation: Look at pic down below.

7 0

2 years ago

Kylie is comparing the cost of two housekeeping companies, DoItRight and CleanIt. The table describes the costs for DoItRight.

abruzzese [7]

Answer:

First, find the cost function of DoItRight Housekeeping:

Slope(m) = cost per hour = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{44-26}{3-1.5}=\frac{18}{1.5}=12$

The y-intercept(b), representing the initial cost, can be calculated by substituting in values to the function:

$f(x)=12x+b\\26=12(1.5)+b\\b=26-18=8$

Therefore, the function for two companies are:

The function for DoItRight is $f(x)=12x+8$
The function for CleanIt is $g(x)=10x+16$

When comparing the two functions, it's shown how CleanIt has a greater y-intercept than DoltRight, meaning that CleanIt has a greater initial cost than DotRight. The y-intercept is when the graph intercepts the y-axis, therefore, the coordinates there would be (0, y-value), which, in this case for CleanIt company, will be (0, 16). While CleanIt has a greater y-intercept(initial cost), DoItRight has a greater slope, meaning they cost more per hour.

7 0

2 years ago