Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)
A.45xy-220
B.15x-30y-220
C.15x+30-220
D.15x+30y-64

Answer:

I think it's -0.5 so F

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

7 * x = 49

x = 49

um i dont really know what you meant but i hope this helps in some way!

Answer:

19 weeks

Step-by-step explanation:

You'll be looking for an equation the form of

y=mx+b

Given:

b = $103.50

m = $5.50

x = ? (where x is in weeks)

Next, set y = 0

--> mx+b = 0

Rearrange

x = (-b/m)

Plug in b and m:

x = (-(-103.5)/5.5) = 18.818

Rounding up, it will Martha 19 weeks to save enough money.

Answer:

C

Step-by-step explanation:

Im pretty sure, but double check

abcdefghijklmnopqrstuvwxyz

Answer:

I believe it is 1,350 but i am not completely sure

Step-by-step explanation:

The radius of the moon in Kilometers is 1350 km.

Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.

Unit conversion is a multi-step procedure that involves adding, subtracting, multiplying, or dividing by a conversion factor. Additionally, rounding and choosing the appropriate number of significant digits may be necessary during the process. To measure various parameters, various units of conversion are utilized.

Given that the radius of the moon is approximately 1,350,000 m. The radius in kilometers will be calculated as,

1 km = 1000m

1 m = 1 / 1000 km

1350000 meters = 1350000 / 1000 km

1350000 meters = 1350 km

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Answer:

a) 2.5×2.5×2.5-1.4×1.4×1.4=12.881

b) (2.5)2+2.5×1.4+(1.4)2=31.5

Step-by-step explanation:

yuh multiple 2.5 three times and subtract 1.4 multiple three times. 2.5×2.5×2.5-1.4×1.4×1.4

15.625-2.744=12.881.

b) when opening bracket Yuh multiple the number in the bracket by the number outside the bracket. when bracket is open Yuh can now add, multiple to obtain your answer please

(2.5)2+2.5×1.4+(1.4)2

5+2.5×1.4+2.8

7.5×4.2=31.5

Answer:

Last one.

Step-by-step explanation:

Given :

Lin has a pet German shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit.

To Find :

Which measurement is in pounds, and which is in kilograms.

Solution :

We know, mass in kg and pounds are related as :

[tex]m_P = 2.2m_{kg}[/tex]

Putting, [tex]m_{kg}=38[/tex] and [tex]m_P=84[/tex] , we get :

LHS = 84

RHS = 2.2 × 38 = 83.6 ≈ 84

Since, LHS = RHS .

Therefore, 38 units is Kg and 84 units in Pounds.

Hence, this is the required solution.

Answer:

72

Step-by-step explanation:

Answer:

x=43.3

Step-by-step explanation:

Answer:

Exact Form: 3/2

Decimal Form:1.5

Mixed Number Form: 1 1/2

Step-by-step explanation:

Answer:

he led the constitutional convention because he was respected throughout the nation

Step-by-step explanation:

The best states George Washington’s connection to the 1787 Constitutional Convention is: He led the Constitutional Convention because he was respected throughout the nation.

The Philadelphia Convention is also known as the Constitutional Convention took place between May 14 and September 17, 1787, to resolve the problems of the United States government.  

The delegate elected to George Washington to led the convention, the presence of Washington a national hero respected by all helped to legitimize the convention. This result of the Convention was the Constitution of the United States of America.

The best states George Washington’s connection to the 1787 Constitutional Convention is: He led the Constitutional Convention because he was respected throughout the nation.

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Answer

y = 10

Step-by-step explanation:

if they are both negative they cancel each other out so -10 x -1 are both negative it would be 10 so y = 10

please mark brainly

Answer:

x=35°

3x= 105°

Step-by-step explanation:

[tex]40 + 3x + x = 180[/tex]

[tex]40 + 4x = 180[/tex]

[tex]4x = 180 - 40[/tex]

[tex]4x = 140[/tex]

[tex]x = \frac{140}{4} [/tex]

[tex]x = 35[/tex]

[tex]3x = 3(35) \\ 105[/tex]

Answer:

you

Step-by-step explanation:

Answer:

Yale University would look so good on my record!

Step-by-step explanation:

But it's a 1/10 chance that I'll make it but It's cool to think about

Answer:

30 cm

Step-by-step explanation:

A. Multiply daily rate by number of days and add that to the starting height:

Height = 2d + 8

B. Set height to 20 and solve for d:

20 = 2d +8

Subtract 8 from both sides

12 = 2d

Divide both sides by 2

D = 6

It wall take 6 days.

Answer:

$1,360

Step-by-step explanation:

Take the monthly payment of $50 and multiply it by 12 because there is 12 months in a year which is $600. Next subtract $2,600 by your deduction of $300 which is $2,300. Then multiply by 20% because the insurance pays 80% leaving you with 20%, you get $460. Add $460 and $300 because those are the amounts you paid and you get $760. Now add the $600 to the $760 because of the monthly payment. The total comes out to $1,360.

Answer:

:)

Step-by-step explanation:

x2-x2 y2-y1

equation- 14+2/2-10

Answer:

Step-by-step explanation:

600,000,000

Answer:

[tex]1.872 \times {10}^{13} [/tex]

Step-by-step explanation:

Simply multiple the values listed

[tex]3.12 \times {10}^{5} \\ \times 6 \times {10}^{7} [/tex]

You can just multiply the values and keep it in scientific notation. No reason to multiply all if it to find the answer.

[tex]18.72 \times {10}^{12} [/tex]

Now we have to put it into scientific notation, simply move the decimal to the left by 1 and add to the exponenet by 1.

[tex]1.872 \times {10}^{13} [/tex]

Answer:

0.025 grams

Step-by-step explanation:

1milligrams equals 0.01grams

25milligrams equals 0.025 grams