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
Dominik [7]
3 years ago
5

-20 - 4y when y = -3 need help asap

Mathematics
1 answer:
andreev551 [17]3 years ago
8 0
Since y=-3 you need to set up the equation
-20-(-3)
And all you have to do is simplify
So your answer will be
-17

Hope this helped :)
Have a great day
You might be interested in
Math test pls help me
Natalija [7]

Answer:

D. \frac{45}{x^{10}}

Step-by-step explanation:

(3 {x}^{ - 4} )^{2} (5 {x}^{ - 2} ) \\  \\  = (9 {x}^{ - 8} )(5 {x}^{ - 2} ) \\  \\  = 9 \times 5 \times  {x}^{ - 8 - 2}  \\  \\  = 45 {x}^{ - 10}  \\  \\  =  \frac{45}{ {x}^{10} }

3 0
2 years ago
.340 in expanded notation
snow_tiger [21]
(3 x .1) + (4 x .01)
x is multiplication

Since the 3 is in the tenths place, multiply by 1 tenth, same with the hundredths place, just multiply 4 by 1 hundredth
7 0
3 years ago
Read 2 more answers
A)45-(+15)+25-(-5)=?<br>b)-30-(-14)-(-4)=?​
olga2289 [7]

Answer:

A) 45-(+15)+25-(-5) = 35

B) -30-(-14)-(-4)= -12

8 0
3 years ago
Read 2 more answers
Mary weighs n kg while her sister weighs 15 kg less. How many times is Mary heavier than her sister?
kari74 [83]

Answer:

Mary is  \frac{n}{n-15}  times heavier than her sister

Step-by-step explanation:

Mary's Weight = n

Sister's Weight = n - 15

To find how many times mary is heavier, we need to multiply "that many time" [let it be x] with sister's weight to get Mary's weight.

<u>e.g. </u>If someone weighs 100 and another person 50, 50 * 2 = 100, thus, 100 kg person is 2 times heaving. We do same for this:

(n - 15) * x = n

x = n/(n - 15)

3 0
3 years ago
Read 2 more answers
Using a very precise measuring device, Dr. Calvin measured the thickness of a piece of metal to be 0.00064 of a meter. Dr. Amos
yarga [219]
<span>so when ever you see "x10-5" all that it is saying is to move the decimal to the left 5 number places</span>
3 0
3 years ago
Other questions:
  • (4) (5) Geometry help
    7·1 answer
  • In a right triangle, one leg is 20 cm and the hypotenuse is 30 cm. To the nearest hundredth of a cm, find the length of the miss
    9·2 answers
  • If there are 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left af
    12·2 answers
  • Help, please I just can't.
    7·1 answer
  • The following is a special trapezoid. Given AB || DC and m∠A = 113° Find the measure of ∠D.
    13·1 answer
  • I can’t use my calculator so can someone please answer 2.8 quintillion to the power of 8 divided by 3.7 billion to the power of
    7·1 answer
  • It costs $20 for 4 t shirts. Find the cost of 1 t shirt.
    11·1 answer
  • HELP PLS ASAP i’ll mark as brainliest if correct !
    11·1 answer
  • In an arithmetic sequence, = 5 and = 11.
    10·1 answer
  • At Southside Middle School, 20% of the students play an instrument. There are 305 students. How many students play an instrument
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!