jessica and sarah collect insects.Jessica has two hundred thirty four insects sarah has 2.5 times as many insects as Jessica

How many insects does sarah have?

Answer:

x*2=y+x= both

Step-by-step explanation:

y would be her sister age, you would have to multiply Marias age by 2 to get her sisters age since her sister is twice her age then you have to add them together to get the sum of both their ages.

Example: maria is 16

               16*2=32+16=48

           so the sum of both of their ages is 48 (JUST AN EXAMPLE)

Answer:

(-2,3)

Step-by-step explanation:

(-2,3) hope this helps

Answer:

Step-by-step explanation:

y=-2x-1

5y+3x=9, using y from above in this equation gives you

5(-2x-1)+3x=9

-10x-5+3x=9

-7x-5=9

-7x=14

x=-2, and since y=-2x-1

y=-2(-2)-1

y=4-1=3, so the solution is the point (-2,3)

x=-2 and y=3

Answer:

I believe its A C D

Step-by-step explanation:

Answer:

42.25

Step-by-step explanation:

You multiply 6.5 by 2 by 3.25 to get the answer

Answer:

42.5 units^3

Step-by-step explanation:

VOLUME EQUATION: l x w x h

6.5 x 2 x 3.25

42.5

DON'T FORGET YOUR UNITS CUBES

Answer:

(1 - .35) x $28 = $18.20

Answer:

157.62

Step-by-step explanation:

Answer:

So you take 3.4 and subtract from 6.6 which equals 3.2. Then if you add 3.4+3.2= 6.6. Hope this helps.

Step-by-step explanation:

Sorry I am late hope this helps

Sample Response:

Sum means the result of adding two numbers. The bar diagram represents that an unknown number and 3.4 together make 6.6. So 3.4 + what number equals 6.6? The result is 3.4 + 3.2 = 6.6. The sum of 3.4 and 3.2 is 6.6.

Answer:

x = -6

Step-by-step explanation:

1. 3x + 2 = 2x - 4

2. subtract 2x from 3x to get the variables together.

3. New equation is 1x + 2 = -4

4. Subtract 2 from -4 to get the constants together

5. New equation is 1x = -6

6. Divide by 1 on both sides to get the variable alone

7. Your answer is -6

Hope that helps

Answer:

50 fiction books

Step-by-step explanation:

if there are 91 books, it's simple subtraction. 91-28 is 63. 63 - 13 = 50. 50 fiction books, amiright?

Answer:

50

Step-by-step explanation:

28 Nonfiction + 13 Poetry = 41 books

91 - 41 = 50 Fiction

Answer:

which figure?........

Answer:

42 < 63 < 75

Step-by-step explanation:

E-Z

Answer:

2[tex]\sqrt{22}[/tex]

Step-by-step explanation:

Use pythagorus's theorem:

a²=b²+c²

13²=9²+x²

169=81+x²

x²=88

x=[tex]\sqrt{88}[/tex]

x=[tex]\sqrt{22*4}[/tex]

x=[tex]\sqrt{22} \sqrt{4}[/tex]

x=2[tex]\sqrt{22}[/tex]

Answer:

What the girl said

Step-by-step explanation:

Answer:22

Step-by-step explanation:

Answer:

Step-by-step explanation:

let x be chickens and y be cows

x+y=15

x=15-y

2x+4y=44, using x=15-y

2(15-y)+4y=44

30-2y+4y=44

2y+30=44

2y=14

y=7, since x=15-y

x=8

So there are 8 chickens and 7 cows.

Answer:

a²+b²+c²+2ab+2bc+2ca

Answer:

False.

Step-by-step explanation:

The real number that x equals to is 18.

Answer:

12.4 cm

Step-by-step explanation:

Answer:

21.2888888889. it is wrong

Step-by-step explanation:

Answer:

Step-by-step explanation:

From the given information;

The present value of series A:[tex]=\Big[1000 \times \dfrac{(1.095)^0}{(1.09)^1}\Big]+\Big[1000 \times \dfrac{(1.095)^1}{(1.09)^2}\Big]+...+\Big[1000 \times \dfrac{(1.095)^4}{(1.09)^5}\Big][/tex]

[tex]= 1000 \Big [ \dfrac{1}{1.09}+ \dfrac{1.095}{1.1881}+ \dfrac{1.199}{1.295}+\dfrac{1.313}{1.912}+\dfrac{1.438}{1.539}\Big][/tex]

[tex]= 1000 \Big[ 0.917 + 0.922 + 0.926 + 0.930 + 0.934\Big][/tex]

[tex]= 1000 \times 4.629[/tex]

[tex]= \$4629[/tex]

Thus, the present value of series A is = $4629

Present value of series A = Present value of series B

[tex]The \ value \ of\ X = \dfrac{Present \ value \ of \ series \ B }{\Big [\dfrac{1-(1+r)^{-n}}{r} \Big ]}[/tex]

[tex]The \ value \ of\ X = \dfrac{4629 }{\Big [\dfrac{1-(1+0.09)^{-5}}{0.09} \Big ]}[/tex]

[tex]The \ value \ of\ X =\dfrac{4629 \times 0.09}{1-0.6499}[/tex]

[tex]The \ value \ of\ X =\dfrac{416.61}{0.3501}[/tex]

[tex]The \ value \ of\ X =1189.97[/tex]

Thus, the value of X = $1189.97

2.

The present value of series A:

[tex]=1000 \times \Big[\dfrac{(1.095)^0}{(1.08)^1}+ \dfrac{(1.095)^1}{(1.08)^2}+...+\dfrac{(1.095)^4}{(1.08)^5}\Big][/tex]

[tex]=1000 \Big [ \dfrac{1}{1.08}+ \dfrac{1.095}{1.1664}+\dfrac{1.199}{1.2597}+\dfrac{1.313}{1.3605}+\dfrac{1.438}{1.4693}\Big ][/tex]

[tex]= 1000\Big [ 0.9259 + 0.9839+0.952 + 0.965+0.979\Big ][/tex]

[tex]= 1000 \times 4.76059[/tex]

[tex]\simeq \$4761[/tex]

Thus, the present value of series A is = $4761

Present value of series B =[tex]Value \ of \ X \times \Big [ \dfrac{1 - (1+r)^{-n} }{r}\Big ][/tex]

[tex]= 1189.97 \times \Big [ \dfrac{1 - (1+0.08)^{-5} }{0.08}\Big ][/tex]

[tex]= \dfrac{1189.97}{0.08} \times \Big ( 1 -0.6806\Big )[/tex]

[tex]= 14874.625 \times 0.3194[/tex]

[tex]= \$4750[/tex]

Thus, the present value of series B = $4750

3.

The present value of series A:

[tex]=1000 \times \Big[\dfrac{(1.095)^0}{(1.05)^1}+ \dfrac{(1.095)^1}{(1.05)^2}+...+\dfrac{(1.095)^4}{(1.05)^5}\Big][/tex]

[tex]=1000 \Big [ \dfrac{1}{1.05}+ \dfrac{1.095}{1.1025}+\dfrac{1.199}{1.1576}+\dfrac{1.313}{1.2155}+\dfrac{1.438}{1.276}\Big ][/tex]

[tex]= 1000\Big [ 0.9524 + 0.9932+1.0357 + 1.08+1.127\Big ][/tex]

[tex]= 1000 \times 5.1883[/tex]

[tex]\simeq \$5,188[/tex]

Thus, the present value of series A = $5188

Present value of series B: =[tex]Value \ of \ X \times \Big [ \dfrac{1 - (1+r)^{-n} }{r}\Big ][/tex]

[tex]= 1189.97 \times \Big [ \dfrac{1 - (1+0.05)^{-5} }{0.05}\Big ][/tex]

[tex]= \dfrac{1189.97}{0.05} \times( 0.2165)[/tex]

[tex]= \$5152.57[/tex]

Thus, the present value of series B = $5153

Answer:

Step-by-step explanation:

Answer:

There's a proportion relationship between number of shell and their cost

Step-by-step explanation:

The graph is not given.

However, I've added the appropriate graph as an attachment.

From this, point....

I'll show that the cost and number of shells as given in the question are proportional.

Represent cost with y and number of shells with x

x = 2 when y = 0.8

x = 3 when y = 1.2

x = 4 when y = 1.6

Divide each value of y by x to get the constant of proportion (r).

r = y/x

r = 0.8/2 = 0.4

r = 1.2/3 = 0.4

r = 1.6/4 = 0.4

Notice that the values of r remain constant.

Hence, there's a proportion relationship between both

And what this rate represent is that:.the cost of shell changes at a constant rate when the number of shell is changes.

The graph is not given.

However, I've added the appropriate graph as an attachment.

From this, point....

I'll show that the cost and number of shells as given in the question are proportional.

Represent cost with y and number of shells with x

x = 2 when y = 0.8

x = 3 when y = 1.2

x = 4 when y = 1.6

Divide each value of y by x to get the constant of proportion (r).

r = y/x

r = 0.8/2 = 0.4

r = 1.2/3 = 0.4

r = 1.6/4 = 0.4

Notice that the values of r remain constant.

Hence, there's a proportion relationship between both

And what this rate represent is that:.the cost of shell changes at a constant rate when the number of shell is changes.

Answer:

I can't understand

Step-by-step explanation:

pls translate to english

Answer:

Here is you graph

Step-by-step explanation:

:)

Answer:

The answer is 170 feet

This is how to solve the question

When you are below sea level it means that you are at a negative (in math terms)

So you are 50 feet below sea level and you want to get to a place that is 120 feet high

So you take 50 into account because your starting below sea level then you add 120 for the distance to get up the mountain

120+50= 170

Hope that helps!

Answer:

An Accountant?

Answer:

The graph is down below

Step-by-step explanation:

Answer:

x + 7

Step-by-step explanation:

amy is unknown x + 7 equals zack