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timurjin [86]
3 years ago
5

Umesh's teacher is giving a 50-point quiz with 15 questions on it. Some of the questions are multiple-choice, and some of them a

re short answer questions. The multiple-choice problems are worth 3 points each, and the short-answer questions are worth 5 points each. How many questions are multiple-choice?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
7 0

Answer:

10

Step-by-step explanation:

3x10 is 30

4x5 is 20

20+30=50

There are 10 multiple choice questions

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The length of a rectangle is 3 yd longer than its width. if the perimeter of the rectangle is 50 yd , find its length and width.
leva [86]
Length = w+3
P = 2L +2W
50 = 2(w+3) + 2w
50 = 2w +6 +2w
50 = 4w +6
50-6 =4w-6
44 = 4w
44/4 = 4w/4
w = 11
l = 11+3
l = 14

50 = 2L+2W
50 = 2(14) + 2(11)
50 = 28 +22
50=50

7 0
3 years ago
What is the absolute value of the following complex number?<br> -4 + 4
snow_lady [41]

Answer:

Itz 0 if I am not wrong

hope it helps

3 0
3 years ago
Read 2 more answers
Solve for x.
Tcecarenko [31]

Answer: x=-1

Step-by-step explanation:

8-3x-x=12

-3x-x=-4x

8-4x=12

-8     -8

-4x=4

-4x/-4=4/-4

x=-1

7 0
3 years ago
Read 2 more answers
A square parking lot has an area of 12,996 square yards. a. What is the length of one side of the parking lot? b. How many yards
jenyasd209 [6]

Answer:

114 yards

456 yards

Step-by-step explanation:

Given that:

Area of square parking lot = 12,996 square yards

The lenght of one side of the parking lot :

Area of a square = a² ; a = side length

Hence ;

12996 = a²

√12996 = a

114 = a

Hence, length of one side = 114 yards

Yards of fence needed to enclose parking lot :

Perimeter of a square = 4a ; a = side length

Perimeter = 4(114)

Perimeter = 456 yards

7 0
3 years ago
Find the distance between the points (<br> -<br> 10,12) and (15,12).
Nitella [24]
The distance formula is:

d= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

We are given two points in the form (x,y), so plug in the values to the distance formula:

d= \sqrt{(-10-15)^2-(12-12)^2}

Next we can simplify. We know that 12-12 is 0, so we can drop it from the equation, as it will not affect our answer. Also, we know that -10-15 is -25:

d= \sqrt{(-25)^2}

The square and square root cancel each other out leaving us with 25.

The answer is 25.


5 0
3 years ago
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