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
lukranit [14]
3 years ago
7

What value of r makes this equation true? justify your solution. 0.4r - 7 = -.3r +2.8

Mathematics
2 answers:
Georgia [21]3 years ago
6 0

Answer:

all work is pictured and shown

fiasKO [112]3 years ago
3 0

The answer is 14

0.4r-7=-.3r+2.8

Add 7 to both sides. -7+7=0 so it cancels on the left. 2.8+7=9.8.

0.4r=-.3r+9.8.

Add .3r to both sides. -.3r+3r=0 so it cancels on the right. 0.4r+.3r=0.7r.

0.7r=9.8

Divide 0.7 to both sides. 9.8 divided by 0.7 = 14

So r=14

You might be interested in
A. 0<br><br><br> B. 1<br><br><br> C. 2<br><br><br> D. 3
zloy xaker [14]
-19 to -15 would be a positive 4 difference

19 to 15 = 4 this would be a -4 difference

3 to 7 is a positive 4 difference

-3 to 7 is a difference of 10

so there is 1 with a -4 difference
 answer is B.


6 0
2 years ago
CAN SOMEONE PLEASE HELP WITH THIS PROBLEM PLEASE!!!!
Flauer [41]
Naw bruv i’m doing the same problems rn and i’m struggling gl tho
4 0
2 years ago
Help Me with this question please​
artcher [175]

Answer:

22

Step-by-step explanation:

The abs of y is 29 because 29 is positive

51 - 29 = 22

4 0
3 years ago
Read 2 more answers
Solve the following system by graphing.<br> Y =<br> 2 + 5<br> y = -x-1
Klio2033 [76]

Answer:

Step-by-step explanation:

2x + 5 = -x  - 1

3x + 5 = -1

3x = -6

x = -2

y = 2 - 1

y = 1

(-2, 1)

4 0
3 years ago
The graph of h(x) is shown. Graph of h of x that begins in quadrant two and decreases rapidly following the vertical line which
fgiga [73]

Answer:

<u>x-intercept</u>

The point at which the curve <u>crosses the x-axis</u>, so when y = 0.

From inspection of the graph, the curve appears to cross the x-axis when x = -4, so the x-intercept is (-4, 0)

<u>y-intercept</u>

The point at which the curve <u>crosses the y-axis</u>, so when x = 0.

From inspection of the graph, the curve appears to cross the y-axis when y = -1, so the y-intercept is (0, -1)

<u>Asymptote</u>

A line which the curve gets <u>infinitely close</u> to, but <u>never touches</u>.

From inspection of the graph, the curve appears to get infinitely close to but never touches the vertical line at x = -5, so the vertical asymptote is x = -5

(Please note:  we cannot be sure that there is a horizontal asymptote at y = -2 without knowing the equation of the graph, or seeing a larger portion of the graph).

5 0
2 years ago
Read 2 more answers
Other questions:
  • In how many ways can a set of two positive integers less than 100 be chosen?
    13·1 answer
  • A triangle has sides of lengths 4, 3, and 5. Is it a right triangle? Explain.
    9·1 answer
  • Rafael Drive 405 miles using 20 gallons of gas. At that rate, how many gallons of gas would he need to drive 243 miles?
    14·1 answer
  • Evaluate 32 + (5 − 2) ⋅ 4 − 6 over 3
    9·2 answers
  • Describe fully the single transformation that maps triangle a onto triangle b
    15·2 answers
  • The prices in the table show the cost of each activity at the fun place.About how much would it cost for 4 people to play minita
    13·1 answer
  • Whoever answers right first gets brainliest. :)
    6·1 answer
  • Can you help me please I don't understand. ​
    7·1 answer
  • Can someone help me please? the last point of the first graph ends on 6 ​
    9·1 answer
  • Pls help me thank you
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!