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
Paraphin [41]
3 years ago
8

Solve 4(r+1.9)-9r=12.2 r= type integer or decimal rounded to the nearest hundredth as needed

Mathematics
1 answer:
zimovet [89]3 years ago
6 0
<span>4(r+1.9)-9r=12.2
</span><span>4r + 7.6 -9r = 12.2
-5r = 12.2 - 7.6
-5r = 4.6
r = 4.6/-5
r = - 0.92</span>
You might be interested in
HELP ME PLEASE HELP ME HELP ME PLEASE
riadik2000 [5.3K]

Answer:

<h2>     no, because the remainder is 126</h2>

Step-by-step explanation:

if x+3 is a factor, then -3 is a root of expression, and the remainder would be 0

calculating remainder:

-3(-3)^3+6(-3)^2+6(-3)+9=-3\cdot(-27)+6\cdot9-18+9=\\\\=81+54-9=126

4 0
3 years ago
Which of the following angle relationships in △ABC are correct? Select all that apply. There is a triangle ABC in which the leng
Monica [59]

9514 1404 393

Answer:

  A, B, D

Step-by-step explanation:

The sides in order from smallest to largest are ...

  AC, BC, AB

Then the opposite angles in order from smallest to largest are ...

  B, A, C

Let's consider the choices:

A. m∠A < m∠C --- true

B. m∠B = m∠C --- true

C. m∠A < m∠B --- false

D. m∠B < m∠A < m∠C --- true

7 0
2 years ago
Lena is 10 years old. She asks her dad how old he is. He tells her that the lowest common multiple of their ages is 14 times the
Ksju [112]

Answer:

  35

Step-by-step explanation:

We know the factors of Lena's age are 2 and 5. The least common multiple must have these factors and the factors of 14, so will at least have factors of 2, 5, and 7.

Apparently, the dad's age is 5·7 = 35.

___

The GCF is 5; the LCM is 70 = 5×14.

_____

Sometimes, I use a little 3-part diagram to think about LCM and GCF. Here, it would look like ...

  (2 [5) 7]

where the numbers in curved brackets (2·5) and the numbers in square brackets [5·7] are factors of the two numbers of concern (Lena's age, her dad's age). The middle number in both brackets [5) is the greatest common factor, and the product of all three numbers is their least common multiple.

Here, the product of outside numbers, 2·7 = 14, represents the ratio of the LCM to the GCF. We know that Lena's age has factors of only 2 and 5, so the numbers in the diagram have to be (2[5)7], where 2 and 7 are on the ends and 5 is in the middle.

7 0
3 years ago
what is the answer to 18 2/5 - 9 13/ 15 andb 28 3/9 - 19 5/6. Plz help her now!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
wel

8 and 8/15 or 128/15 and 8.5

4 0
3 years ago
A line segment has endpoints at (–1, 4) and (4, 1). Which reflection will produce an image with endpoints at (–4, 1) and (–1, –4
Ivahew [28]

Answer:

A

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • I need to find AB. The options are<br><br> A. 25m<br> B. 64m<br> C. 32m<br> D. 30m
    11·1 answer
  • The numbers 2/1/3,h,k,7/7/8 firm a geometric progression. find the value of h and of k
    11·1 answer
  • {y=4x+4} and {y=-4x-12}<br> 4x+=-4x-12
    6·1 answer
  • Mr. James has cylindrical beakers that measure 4 inches in diameter and 9 inches high. What is the volume contained within the b
    13·1 answer
  • FIND THE AREA OF THE RHOMBUS!!!! PLEASE HELP!!!!
    15·1 answer
  • Can someone help me with this??
    10·1 answer
  • The average cycling speed for an experienced cyclist is 18 miles per hour. What is the average cycling speed for an experienced
    5·1 answer
  • ASAP!! PLEASE NEEDS TO BE ANSWERED TODAY
    10·2 answers
  • Maya adds 6 grams of sugar to a bottle containing 14 grams of warm water. What is the total weight of the sugar and water?
    6·1 answer
  • Which of these ratios are equivalent ratio<br> 1:4 2:8 3:6 7:28
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!