A faraway planet is populated by creatures called Jolos. All Jolos are either
green or purple and either one headed or two-
headed.
Balan, who lives on this planet, does a survey and finds that her colony of 725
contains 145 green, one-headed Jolos; 240 purple, two-headed Jolos; and
350 one-headed Jolos.
One-headed Two-headed Total
Green
145
Purple
240
Total
350
725
How many green Jolos are there in Balan's colony?

Answer:

(- 2, 2 )

Step-by-step explanation:

Given the 2 equations

y = x + 4 → (1)

y = - 2x - 2 → (2)

Substitute y = x + 4 into (2)

x + 4 = - 2x - 2 ( add 2x to both sides )

3x + 4 = - 2 ( subtract 4 from both sides )

3x = - 6 ( divide both sides by 3 )

x = - 2

Substitute x = - 2 into either of the 2 equations abd evaluate for y

Substituting into (1)

y = - 2 + 4 = 2

solution is (- 2, 2 )

Answer:

B

Step-by-step explanation:

Answer:

y=-2x-8.5

Step-by-step explanation:

y=mx+b

slope = -2

y=-2x+b

y intercept = -8.5

y = -2x-8.5

Answer:

$80 interest will be owed for 4 months

Step-by-step explanation:

P is the principal amount, $4000.00.

r is the interest rate, 8% per year, or in decimal form, 8/100=0.08.

t is the time involved, 3....month(s) time periods.

Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into "year" as well.

Do this by dividing your time, 3- month(s), by 12, since there's 12 months in 1 year.

So, t is 0.25....year time periods.

To find the simple interest, we multiply 4000 × 0.08 × 0.25 to get that

Answer:

12x+5=162

Step-by-step explanation:

Answer:

34.99°

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE

Let angle( X) = angle if elevation

From trigonometry, tan(X)= opposite/ adjacent

Height of the flagpole= 21 ft , which is the opposite side

The base, adjacent side = 30 ft

If we substitute the values we have

Tan(X) = 21/30

Tan(X)= 0.7

Tan-1(0.7)=34.99°

Hence, the angle of elevation of the sun when this shadow will cast is 34.99°

Answer:

obtuse triangle

Step-by-step explanation:

Answer:

D. OBTUSE

Step-by-step explanation:

it's an obtuse triangle. :)

Answer:

318

Step-by-step explanation:

just to 2120 x .15

Answer:

1890

Step-by-step explanation:

Loss = 11/2 % = 5.5 %

Cost price = 2000

Loss = 5.5% of cost price

         = 5.5% * 2000

         [tex]= \frac{5.5}{100}*2000\\\\= 5.5*20\\= 110[/tex]

Selling price = Cost price - loss

                      = 2000 - 110

                      = 1890

Answer:

ans: x= 1/2

Step-by-step explanation:

she needs 10 feet because 6 2/3 yard converted into feet is 20 and 30-20=10

Answer:

4.83

Step-by-step explanation:

69$ is the sell price

7% is the commission rate

69$ x 7% = 4.83

Answer:

b.(4,6/7)

Step-by-step explanation:

i hope i was able to help with the question

Answer:

bh

Step-by-step explanation:

for a parallelogram, the area is equal to the base multiplied by the height.

Answer:

she invested 6600 at 3% and 3400 at 2.5%

Step-by-step explanation:

Simple interest = amount deposited x time x interest rate

Let the amount deposited in in the account bearing 3% interest by represented with a

Let the amount deposited in in the account bearing 2.5% interest by represented with (10,000 - a)

a x 0.03 + (10,000 - a) x 0.025 = 283

0.03a + 250 - 0,025a = 283

collect like terms

0.03a - 0.025a = 283 - 250

0.005a = 33

a = 6600

the amount deposited in the 2.5% account = 1000 - 6600 = 3400

Answer:

90 pages

Step-by-step explanation:

Given: 70% of a book, 27 more pages

To find: How many pages there are in the book

Solution: If 70% is 27,

27 to the 20 it stands for is 20

70 + 20 = 90

Thus, there are 90 pages left in the book

Answer:

the answer is A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

891

Step-by-step explanation:

v=bh which is base-9x11=99 height=9 so,

v-99x9=891

The angle 4 and 120 degrees angles are alternate angles. Therefore, ∠4 = 120 degrees.

Alternate interior angles are the angles formed when a transversal intersects two parallel lines.

Alternate interior angles are the angles formed on the opposite sides of the transversal.

Alternate interior angles are congruent.

Therefore,

∠4 is an alternate interior angle to angle 120 degrees.

Therefore,

∠4 = 120 degrees.

learn more on alternate interior angles here: brainly.com/question/14693114

#SPJ1

Answer:

B,D,E

Step-by-step explanation:

Answer:

okk

Step-by-step explanation:

Answer:

11.401754251

Step-by-step explanation:

I used the Pythagorean theorem to solve. 9 * 9 + 7 * 7 = 130 and the square unit of 130 is 11.401754251 but you should be fine by putting 11.4.

sorry if I'm wrong:(

Answer:

true

Step-by-step explanation:

1+4+8

Answer:  

0.125 inches  

Step-by-step explanation:  

we know that  

The volume of a cylinder is equal to  

we have  

----> the radius is half the diameter

substitute

solve for h

Divide the height by the number of saw blade to determine the thickness of 1 blade

Answer:

1:70

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

245 / 3.5 = 70

1:70

Answer:

X=4, y=1

Step-by-step explanation: