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
Lyrx [107]
4 years ago
9

Please help me on these questions, when/if u answer do the answer like this please "1. x=5" or what ever just so i know which on

e.
1.Solve for the variable: 2x - 28 = 16 Options: 17 -6 11.5 22
2.Solve for the variable 12=5x+7 options: 1 -5 -1 25
3.Solve for x: 140=10x+4x Options: 10 3.5 13.6 136
Mathematics
1 answer:
CaHeK987 [17]4 years ago
7 0

1. x = 22, 2. x = 1, 3. x = 10

1.

2x - 28 = 16 ( add 28 to both sides )

2x = 44 ( divide both sides by 2 )

x = 22 ← solution

2.

12 = 5x + 7 ( subtract 7 from both sides )

5 = 5x ( divide both sides by 5 )

1 = x ⇒ x = 1 ← solution

3.

140 = 10x + 4x ( collect like terms on right side )

140 = 14x ( divide both sides by 14 )

10 = x ⇒ x = 10 ← solution


You might be interested in
Which of the following properties can be used to show that the expression 4^{\frac{5}{3}} is equivalent to \sqrt[3]{4^{5}}
pantera1 [17]

Answer:

see below

Step-by-step explanation:

Not knowing what properties you have to choose from, it'll be one that looks like  a^{\frac{m}{n}}=\sqrt[n]{a^{m}};

The base (a) stays the same;

the Numerator in the exponent is the exponent on the base;

and the Denominator in the exponent is the index (root number) of the radical.

6 0
1 year ago
Which sequences of transformations performed on rhombus ABCD shows its congruency to rhombus A'B'C'D?
Veronika [31]

Answer:

a 90° clockwise rotation about the origin and then a reflection a cross the x-axis

4 0
3 years ago
Can someone help with this :)
Ulleksa [173]
So find the area of the WHOLE triangle shaded or not, and use the formula 1/2bh. After that, use the same formula to find the area of the non shaded triangle. Then, subtract the non shaded from the big traingle. Hope I helped! :)
4 0
3 years ago
Can I get some help :/ ?
serious [3.7K]
1.750
3.516540
4.354.2
5.3560
6.4.73
7.1277.2
8.4544
9.813000
10.0.02532
11.3160000
12.0.00335
13.26310
14. 918.7
15. 9320
16.8.42
17.45160000
18.0.005435
19.2450
20.656.9

Hope this helps!
4 0
3 years ago
Complete the statement below to explain how this model shows that 1/3÷1/5=5/3
Galina-37 [17]
To divide by a fraction, multiply by the reciprocal of that fraction.

1/3 • 5/1 or 1/3 • 5


Calculate the product straight across.

1/3 • 5/1 = 5/3



3 0
4 years ago
Other questions:
  • Helllllllp meeeeee plzzzzzzz
    8·1 answer
  • How do find a number out of a percent
    6·2 answers
  • What is the product of 3/4 and 1/2
    13·1 answer
  • Graph a parabola whose x-intercepts are at x=-3 and x=5 and whose minimum value is y=-4
    13·1 answer
  • 5. 30 is 60% of what number
    14·1 answer
  • Select the correct answer from the drop-down menu.
    15·1 answer
  • The probability . <br> Thank you
    5·1 answer
  • How many 15/16 pins can be cut from a 3 foot rod if 3/32 waste is allowed for each cut?​
    6·1 answer
  • Order the following from Least to Greatest: 0, -4 1/4, -1/2, 1, -3 3/5, 2, -4.1, -0.6, 23/5, 6, -1, 4.5, -5, 2.1
    10·1 answer
  • Um condutor acumulou 13 pontos em infração determine todas as possibilidades
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!