1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
n200080 [17]
3 years ago
7

In a class, 42 students, there are 8 more boys than girls write and solve a system of 3 equations

Mathematics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

x = 17

Step-by-step explanation:

x + x + 8 = 42     because x = boys and x + 8 = girls

2x = 34      because 2x = 42 - 8

x = 17            



i hope this helps!  you don't need the 2x = 42 - 8 to be an equation      ;)

You might be interested in
A paintball court charges an initial entrance fee plus a
matrenka [14]

Answer:

$8

Step-by-step explanation:

Firstly, Let us identify the variables in the functions.

The function states that for every n ball, the price is $0.80. Plus the $5.50.

Now that we know what the function stands for, we can substitute 10 into n, and remove the entrance fee of $5.50.

P=0.80n

This gives us $8, which means the price for 10 balls not including the entrance fee is $8.

7 0
3 years ago
Read 2 more answers
The bases of the trapezoid are 6 and 10. The height is 4. Find the area.
kari74 [83]
<h2>Answer:</h2>

b. \ \boxed{32 \sq. \ units}

<h2>Step-by-step explanation:</h2>

A trapezoid is a quadrilateral where at least one pair of opposite sides are parallel. In a trapezoid, the both parallel sides are known as the bases of the trapezoid. So we have two bases, namely, b_{1}\,and\,b_{2}. Also, the height H of the trapezoid is the length between these two bases that's perpendicular to both sides. So the area of a trapezoid in terms of of b_{1},b_{2}\:and\:H is:

A=\frac{(b_{1}\text{+}b_{2})h}{2}

Since:

b_{1}=6, \ b_{2}=10, \ and \ H=4

The area is:

A=\frac{(6\text{+}10)4}{2}=\boxed{32 \sq. \ units}

6 0
3 years ago
Make y the subject of these equations.<br> by² = d<br> Jay = 6<br> ay - cy = d.<br> cy - b) = y
allsm [11]

Answer:

See all the answers  below.

Step-by-step explanation:

by² = d

Jay = 6

ay - cy = d.

cy - b) = y

Option A

by² = d

divide both side by b

y² = d/b

square both sides

y=√d/b

Option B

Jay = 6

Divide both sides by Ja

y= 6/Ja

Option C

ay - cy = d

y(a-c)=d

divide both sides by (a-c)

y= d/(a-c)

Option D

(cy - b) = y

y-cy=-b

y(1-c)=-b

y= -b/(1-c)

6 0
3 years ago
Please help me with 5 though 10
Monica [59]

Answer:

5.) 352

6.) 125000

7.) 7000

8.) 3900160

9.) 1 pound and 8 ounces

10.) 333.333

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Express the shaded area as a fraction, a decimal, and a percent of the whole.
ANEK [815]

Answer:

Fraction:7/10 Decimal:0.7 Percent:70%

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • How do you solve this problem? 4a-3b+7a=
    7·1 answer
  • What is the slope of the line?
    10·1 answer
  • Find the 18th term of the arithmetic sequence whose common difference is d = 2 and whose first term is a, =5.
    10·1 answer
  • At a local community college, five statistics classes are randomly selected and all of the students from each class are intervie
    8·1 answer
  • Chapter 7 of the Jiuzhang suanshu presents a problem of two linear equations involving acres of land and their respective prices
    12·2 answers
  • Please help I am begging you extra points and BRAINLIEST!!!!!!!
    14·1 answer
  • Which point shows the maximum speed of the car?
    8·1 answer
  • A man invested 800.00in a bank at a simple interest rate of 5% per annum .Find his total amou year​
    9·1 answer
  • Given that the slope is -4 and the y intercept is -4 what is the equation of the line?​
    8·1 answer
  • Give the area of each region of the square as well as the total area of the large square
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!