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
tatiyna
3 years ago
7

Grace and her brother Sid want to raise money to go to band camp. Their parents have agreed to help them up to $400 by paying th

em $25 when one of them mows the lawn and $10 for each hour that one of them babysits their younger brother. They will have to do a combination of both chores in order to earn the money.
Select the equation that represents the number of lawns they can mow, m, and hours they can babysit, b, to earn $400.
Mathematics
1 answer:
Leona [35]3 years ago
5 0

Step-by-step explanation:

25m + 10b = 400

not enough info to solve for m or b. but that's the equation you would use.

You might be interested in
PLEASE HELP ME!!!!!!!!!!!!!!!!!!
lilavasa [31]

Answer:

a) 4 - vt - d = \frac{1}{2} at^{2}

b) 1 - 2(vt - d) = at^{2}

c) 6 - \frac{2(vt - d)}{t^{2}} = a

Step-by-step explanation:

It simply asks the steps to go from the original displacement formula to isolate a (the acceleration).  It's just a matter of moving items around.

We start with:

d = vt - \frac{1}{2} at^{2}

We then move the vt part on the left side, then multiply each side by -1 (to get rid of the negative on the at side and to match answer choice #4):

vt - d = \frac{1}{2} at^{2}

Then we multiply each side by 2 to get rid of the 1/2, answer #1:

2(vt - d) = at^{2}

Finally, we divide each side by t^2 to isolate a (answer #6):

\frac{2(vt - d)}{t^{2}} = a

4 0
3 years ago
What is absolute value
jeka94

Absolute value is the distance between a point and 0. Absolute value is always positive. When you're writing numbers in absolute value, make sure you add:

| |

The absolute value of a negative number is also positive. For example:

| -7 | = 7 ⇒The absolute value of -7 is 7.

3 0
3 years ago
How many solutions does this system of linear equations have? Explain. 3y + 6x = 12 8x + 4y = 16
Vilka [71]

Answer:

first equation : 3y + 6×=12

second equation : 4y + 8x = 16

Step-by-step explanation:

first equation

3y + 6× = 12

now take the common ,

3( y + 2x ) = 12

so, y + 2x = 4

second equation

4y + 8x = 16

4 ( y + 2x ) = 16

so, y + 2x = 4

two lines with same equation have infinitely many solution . these two equations are the same so there are infinitely many solution .

3 0
2 years ago
Which two are equivalent?
never [62]

Answer:

Expression I and IV

Step-by-step explanation:

Expression I simplified :

  • 3n + 7 + n + 4n
  • 8n + 7
  • Expression I = Expression IV
7 0
2 years ago
Which expression represents 87 less than the product of 12 and 15​
ivanzaharov [21]

Answer:

I think answer is 87<180 or maybe 87<12*15

4 0
2 years ago
Other questions:
  • HELP ASAP!!!!!! 20 Points and will mark brainliest for correct answer!
    12·2 answers
  • What is the domain of the given function?<br><br> {(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}
    7·2 answers
  • A pickup truck’s gas tank can hold 19.2 gallons and i can go 460.8 miles on a single tank of gas. How many miles per gallon does
    9·2 answers
  • HELP ASAP:( Roberto lives thirty-eight miles from his college. During school, he rides his bike at 5 mph to the bus station. He
    12·2 answers
  • A projected image appears as an isosceles trapezoid. How many degrees larger do the angles in the lower left and lower right cor
    7·2 answers
  • A circular table has a radius of 2 feet. If Jasmine wants to put a piece of border around the whole table, how many feet of bord
    9·1 answer
  • I NEED YOUR HELP PLS
    14·2 answers
  • Lei presold 323232 carnations for a fundraiser, then she sold ccc more carnations on the day of the fundraiser. She earned 0.250
    13·1 answer
  • Find the value of f(3) for the function.<br> f(x) = - 7(x + 2)
    8·1 answer
  • Hhhhhhhhhhheeeellllpppppp me
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!