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
tatiyna
3 years ago
13

Need help with maths ASAP

Mathematics
1 answer:
givi [52]3 years ago
8 0

Answer:

a = 7

b = 3

Step-by-step explanation:

So you can come up with 2 equations.

a(9 + b) = 84

ab = 21

On the first equation, divide by 9 + b on both sides.

a=\frac{84}{9+b}

n the second equation, divide by b on both sides.

a=\frac{21}{b}

Now you can set them equal and solve for b.

\frac{84}{9+b}=\frac{21}{b}

Cross multiply:

84b = 189 + 21b

63b = 189

b = 3

a = 7

You might be interested in
Elect from the drop-down menus to correctly complete the statement.
murzikaleks [220]

Answer:

568.32 x 104 = 59105.28

Step-by-step explanation:

3 0
2 years ago
I need help with: 100 textbooks increased by 99%. Is it 199??
yarga [219]
Hey there! :D

99%=.99

100*.99= 99 

100+99= 199

So, you would be correct. 99% of 100= 99 Nice work!

I hope this helps!
~kaikers
6 0
3 years ago
Read 2 more answers
Using the Division algorithm to find q and r such that 3662 = q·16+r , where 0 ≤ r < 16 . What if we take c = −3662 instead o
bagirrra123 [75]

Answer:

a) If c=3662 then q=228 and r=14.

b) If c=-3662, then q=-229 and r=2

Step-by-step explanation:

a) Observe that 229*16=3664, since r must be in the interval [0,16), then 229 doesn't work, but 228*16=3648 and 3662-3648=14.

Then 3662=228*16+14.

b) Observe that -228*16=-3648 and -3648-14=-3662, but r= must be positive. Then -228 doesn't work.

But observe that -229*16=-3664 and -3664+2=-3662. So -3662=-229*16+2

4 0
3 years ago
Help me please emergency
adoni [48]

Step-by-step explanation:

this can be found by determination of the highest and lowest x values

4 0
2 years ago
Read 2 more answers
A vegetable garden and it's around a pasta shaped like a square that together are 12 ft wide. A path is 1 feet wide. If one bag
Nat2105 [25]

The overall width of the path and garden is 12 feet.

The area of the entire garden and path is 12 x 12 = 144 square feet.

The path is 1 foot wide, so the garden would be 12 - 2 = 20 feet wide.

The area of the garden only would be 10 x 10 = 100 square feet.

The area of the path only = 144 - 100 = 44 square feet.

1 bag covers 9 square feet:

44 / 9 = 4.88

You would need 5 bags.

7 0
3 years ago
Other questions:
  • What are all of the real roots of the following polynomial? f(x) x^4-24x^2-25
    7·2 answers
  • For accounting purposes, the value of assets (land, buildings, equipment) in a business depreciates at a set rate per year. The
    5·2 answers
  • (x-2)(-5x^2+x)=(x)(-5x^2)+(x)(x)+(-2)(-5x^2)+(-2)(x)
    7·1 answer
  • Question 20 (5 points)
    15·1 answer
  • Can someone help me with this? please and thank you
    5·1 answer
  • What is the area of a circle ​
    8·2 answers
  • Will mark brainliest and 12 points
    5·1 answer
  • I NEED HELP ASAP ITS FOR TODAY PLZ SHOW YOUR WORK
    12·1 answer
  • Blockbuster Video charges $3 to a rent a video, plus an additional $2 for every day that the video is late. Which equation can b
    7·1 answer
  • What is the slope for this graph?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!