Mathematics College

the area of a certain desert is nine times the area of another desert. if the sum of their areas is 30,000,000 sq miles. find the area of each. ​

Answers

Answer 1
So the sum of both deserts is 30000000 and one is 9 times more than the other, it’s a 1:9 ratio. 9+1 is ten and 30000000/10 is 3,000,000. That’s the area of the smaller desert. You multiply 3 million by 9 and get 27,000,000 sq miles for the larger desert. Hope that makes some sense! :)

Related Questions

Which fraction is equivalent to 0.8?

Answers

Answer:

4/5

Step-by-step explanation:

.8 means 80/100 (divide both top and bottom by 20)

Answer: 4/5

Step-by-step explanation:

Solve the quadratic formula

X^2-5x-14=0

Answers

Answer:

Step-by-step explanation:

Sum = -5

Product = -14

Factors = 2 , (-7)      because 2*(-7) = -14 and 2 + (-7) = -5

x²  - 5x - 14 = 0

x² + 2x - 7x - 14 = 0

x(x + 2) -7(x + 2) = 0

(x + 2)(x - 7) =0

x + 2 = 0           ;  x -7 =0

     x = -2  ;            x  = 7

If f(x) =X +3, what is the value of f(3) and f(-2)?

Answers

THIS ANSWER IS FOR f(3):
f(x)=x+3
f(3)=3+3
f(3)=6

THIS ANSWER IS FOR f(-2):
f(x)=x+3
f(-2)=-2+3
f(-2)=1

25, 27, 24, 26, 40
A. What is the mean of the data?
B. What is the median of the data?

Answers

mean is 28.4 (all numbers added together then divided by the amount of numbers)
median is 24 (the middle number)
THE ANSWERS R a. IS 28.4 b. IS 26

Would y^10/y^10 become 1?

Answers

Answer:

yes

Step-by-step explanation:

If you are dividing it will become 1 because 10 minus 10 equals 0. Anything to the power of 0 is 1 then you keep the base which is y so the answer is y

If you are multipling the answer will be y^10  because 10 plus 10 is 20 and you keep the base which is y

Which statement describes this pair of congruent triangles?

Answers

H and N are congruent because they are both 58 degrees,

J and L are congruent because they are both 62 degrees,

and K and M are congruent because they are both 60 degrees.

Therefore triangle HJK is congruent to triangle NLM.

Answer:

The answer is C

Step-by-step explanation:

Kause i said so

What percent of 30 is 45?
Please

Answers

Answer:

150

Step-by-step explanation:

Answer:

answer is 66.67

Step-by-step explanation:

30: 45*100=

(30*100):45=

3000:45=66.67

Please help!!!! I don’t understand how to figure it out

Answers

Answer:

(sin x)^2*(sec x) is positive in QII

Step-by-step explanation:

(sin x)^2 is always 0 or positive.  Here x lies in QII.

sec x is positive when the adjacent side is positive and negative when the adjacent side is negative.  In QII the adjacent side is positive.

In summary, (sin x)^2*(sec x) is positive in QII

After the movie 99 out of 130 people surveyed.
What is the experimental probability that the next person surveyed will say he or she liked the movie?

Answers

Answer:

19 percent

Step-by-step explanation:

yw

Jack decides to invest $300 per quarter into an annuity. How long would he have to keep investing if the annuity is paying 8% annually and he wants to accumulate $10,000?

Answers

Answer:

25.95 quarters which is about 6.5 years

Step-by-step explanation:

Help me with my math**50 pts** i mark brainliest**

Answers

Answer:

3) Reflexive Property

4) SAS

Step-by-step explanation:

ST ≅ TS

1. The Reflexive Property states that: a quantity is congruent (equal) to itself.

Example: a = a  In this case, it could be seen as ST ≅ ST because they have/are the same side(s).RST ≅ UTS

1. SAS theorem states that: two triangles are equal if two sides and the angle between those two sides are equal.

Example: RST ≅ UTS (both have S and T) Can be seen as RST ≅ UST as well to make their similarity more evident.

2. Because it is given that RS ≅ UT and RT ≅ US, and it includes the same 2 lines being equal as given/said, RST ≅ UTS because of SAS (theorem).

The new house you bought costs $300 000 but is discounted at 20%. What is the final cost?(PLS I NEED HELP)

Answers

Answer:

240000

Step-by-step explanation:

20% x 300000 = 60000

300000 - 60000 = 240000

Solve. You must factor first.

8n^2-29n + 15 = 0
Please show work

Answers

(8n-5) (n-3)

8n=5. n=3

n=5/8.

PLEASE ANSWER ASAP


Maryam writes down the following 6 numbers
11, 11, 12, 18, 19, A

Maryam works out the mean of the 6 numbers, she then increases the value of a by 60
What will this do to the mean of the 6 numbers?

Answers

It will make it increase by a lot

#17. The height, H metres, of a certain species of Fir
tree can be estimated from the formula.
h= 35d , where d metres is the diameter at the
base. use the formula to determine the approximate
height of a fir tree with base diameter 3.2 m.

Answers

Answer:

The approximated height of the tree is of 112 meters.

Step-by-step explanation:

The height of a tree with a base diameter of d meters is approximated by the following formula:

[tex]h = 35d[/tex]

In this question:

Base diameter of 3.2m, so [tex]d = 3.2[/tex], and the height is in meters.

[tex]h = 35d = 35(3.2) = 112[/tex]

The approximated height of the tree is of 112 meters.

Answer:

The answer actually is 76m

Step-by-step explanation:

i need help i will mark brainiest

Answers

Step-by-step explanation:

option D

16+ 125/ 6= 141/6 = 47 / 2 = 23.5

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

Answer:

23.5

Step-by-step explanation:

4^2+5^3/2+4

16+125=141

141/6=23.5

Not happy Bob, n o t h a p p y

Answers

Answer:

I hope you feel happy

Be happy bud there is good coming for u

Step-by-step explanation:

Miranda found out there are 20 drops in 1 mL of medicine. She measured 15 drops of medicine into a measuring cup. How many milliliters of medicine are in her measuring cup?
A:0.75 mill
B: 0.075 mL
C: 0.15 mL
D 1.5 mL

Answers

Answer:

A: 0.75 mill

step-by-step explanation:

15/20 = 75/100

0.75 = 75/100

Decrease £313 by 62%

Answers

Answer:

194.06

Step-by-step explanation:

313×0.62=194.06

Find the difference
(4y+3)-(y-2)
need it quick

Answers

Answer: 3y+5

Step-by-step explanation: 4y+3−(y−2)

4y+3+−1(y−2)

4y+3+−1y+(−1)(−2)

4y+3+−y+2

(4y+−y)+(3+2)

3y+5

The points with coordinates (0,0)
and (2,1) are connected by a line
segment. If this line segment is
extended into a line, which point
will also be on the line?

Answers

Do you have a picture?
Slope of line passing through (0, 0) and (2, 1) = (1-0)/(2-0) = ½

Equation of line: y = ½x

You must have a common denominator when _______ fractions. Choose all that apply.
A) Subtracting
B) Multiplying
C) Adding
D) Dividing

Answers

Answer:

Adding and subtracting!!!

Step-by-step explanation:

i took math lol

PS plzz tell me if u got it right!!!

Answer:

Dividing, subtracting, adding

Step-by-step explanation:

the reason you can only multiply without a common denominator is that the multiplication process does it for you, normally, the quickest way to find an easy common denominator is to multiply the two, then simplify at the end.

Hopefully this helped!

Can someone help me with these two problems please?

Answers

Answer:

b

j

................................

Mrs. Morris had 2 pounds of butter. She used

Name

2

pound of the butter to make cookie

Which number sentence can be used to find the amount of butter she had then?

Answers

Answer:

ooooooo0000000000000

Identify the independent variables A photo lab charges 0.15 per print

Answers

Answer:

i: number of prints

d: cost

Homework due at 12:00 I need HELP. Please!!!

Answers

1= 130 yards

2= 55 yards

3= 25

Can someone please help

Answers

Answer:

(-4)^10

Step-by-step explanation:

When doing this sort of problem, we multiply the exponents.

This is the power rule.

Diego said that the answer to the question "How many groups of ¾ are in 1?" is 4/3 or 1 1/3.


Do you agree with him? Explain...

Answers

Answer:

Step-by-step explanation:

Yes. 1 ÷ ¾ = 1 × 4/3 = 4/3 = 1⅓

Miss Fallon wants to paint her classroom door in a checkerboard pattern. The door measures 96 inches in length and 36 inches in width. Determine the side length of the largest square they can use to fill the checkerboard pattern completely without overlap or gaps. Fill in the blank. The side length of the largest square they can use is _________ inches. (GCF)

Answers

Answer:The door mesures 96 inches in length and 36 inches in width

if u need a explenation you can ask me

Marley solve 345 -176 and then checked her work which pair of number sentences did she u

Answers

Answer:

Could you finish the question???

Step-by-step explanation:

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