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
belka [17]
3 years ago
6

Please help me, I will award brainliest!!

Mathematics
1 answer:
UNO [17]3 years ago
5 0
Let's say x = hours washing cars and 13-x = hours walking dogs.

so 10*(x) + 9*(13-x) = 122, which is 10x + 9(13-x) = 122. that would be your system.
You might be interested in
Calculate the area of triangle ABC with altitude BD, given A (−6, 0), B (0, 0), C (0, 6), and D (−3, 3).
nata0808 [166]

Answer:

  • 18 unit²

Step-by-step explanation:

If BD is altitude then AC is the base.

<u>The length of AC is:</u>

  • AC = \sqrt{6^2+6^2} = 6\sqrt{2}

<u>The length of BD is:</u>

  • BD = \sqrt{3^2 + 3^2} = 3\sqrt{2}

<u>The area is:</u>

  • A = 1/2bh
  • A = 1/2 * 6\sqrt{2} *3\sqrt{2} = 18 unit²
4 0
3 years ago
Read 2 more answers
which expression is equivalent to (^3sqrtm)^7 in exponential form? a) 7 m/3 b) 3 m/7 c) m 3/7 d) m 7/3
Komok [63]
(\sqrt[3]{m})^{7} = m^{ \frac{7}{3}}
5 0
3 years ago
A fence is being built around a rectangular garden. The length of the garden is 35 feet, and the total fencing used to enclose t
liraira [26]
The garden's width is 45. We know this because
35 \times 2
(length)
35 \times 2 + 2x = 160 \\
35x2 is 70 and you need to neutralize that by taking away 70 from both sides.
160 - 70 = 90
2x = 90
Now divide by 2 on both sides to neutralize the 2 times x.
90 \div 2 = 45
meaning that leaves us with
x = 45
3 0
3 years ago
Read 2 more answers
A 1200 kg car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to
tangare [24]
When the car is moving, it has Kinetic Energy. As soon as the car entercount with the spring, its Kinetic Energy will transfer to Elastic Potential Energy. 

<span>KE = EPE </span>
<span>1/2mv^2 = 1/2kx^2 </span>

<span>change the speed into m/s </span>
<span>50 km/hr = 13.9 m/s </span>

<span>1/2(1200)(13.9)^2 = 1/2k(2.2)^2 </span>

<span>now you do the math to solve for k.
k= 115926/2.42
K= 47903.30</span>
8 0
3 years ago
You and a friend missed the bus so you must wall home from school together. At the park, you part ways.
OLga [1]

Answer:

1.5 miles or kilograms

Step-by-step explanation:

consider marking me brainlist

8 0
2 years ago
Other questions:
  • A piece of paper is 11 inches long and 8.5 inches wide. What is the area of the paper in square centimeters? (Please show work!)
    9·1 answer
  • How many solutions does the equation -3a + 3a + 6 = 7
    5·2 answers
  • Are all these answers correct? Samples and population in mathematics. Please help I really need it.
    14·1 answer
  • Help pls answer this question thx
    9·1 answer
  • Your family goes to a southern style restaurant for dinnner. There are 6 people in your family. Some order the chicken for 14 an
    12·1 answer
  • I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • ΔABC and ΔXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of
    9·1 answer
  • Helppppppp plxxxxxxvvvvvvvvv​
    5·2 answers
  • Mr. Potter's class will take a test for 1 hours. They need to finish by half past 11 to get to lunch on time.
    8·1 answer
  • Convert 10 grams into milligrams. There are 8,000 milligrams in 8<br> grams.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!