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2 years ago

I need help plzzzzzz

Mathematics

2 answers:

stellarik [79]2 years ago

7 0

Answer:

3.7a/10+3b

Step-by-step explanation:

<h2>Hope this helps and have a great day :)</h2>

eduard2 years ago

3 0

The answer is 3.7a+3b

Because you combine like terms

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If F denotes a temperature in degrees Fahrenheit and C is the same temperature measured in degrees Celsius, then F and C are rel

madreJ [45]

Step-by-step explanation:

F= 9/5(C + 32)

5/9 F = C + 32

C = 5/9 F - 32

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3 years ago

Help easy math question!!!

aleksandrvk [35]

Answer:

16 feet

Step-by-step explanation:

This ladder and building creates a right triangle with 34 as the hypotenuse and 30 as a side. the Pythagorean theorem says that a^2 + b^2 = c^2 so 900 + b^2 = 1156. b^2 = 256, square root both sides and you get b = 16

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3 years ago

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Evaluate the expression 4⋅f(6)−6⋅g(5)

sladkih [1.3K]

Answer:

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Step-by-step explanation:

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3 years ago

-2 ×^2 - 4y +6. x=-3. y=-2 evaluate

gladu [14]

Answer:

Answer is below

Step-by-step explanation:

-2 ×^2 - 4y +6

Evaluate simply means to form an idea of something

So Evaluate for x=−3,y=−2

−2(−3)2−(4)(−2)+6

Answer =−4

8 0

3 years ago

Karina uses the system of equations below to compare the monthly utility costs in July and December for electricity, x, and natu

fiasKO [112]

Answer:

d. The cost of natural gas (y) = $0.83 per unit

Step-by-step explanation:

The explanation is shown below:-

the equation of system is:

750x + 17y = 141.61 (i)

300x + 30y =75.90 (ii)

as x indicates the cost of electricity and y indicates the costs of natural gas.

we will solve the both equation with the help of multiplication for (i) by 30 and for (ii) 75

$30\times (750x + 17y) 30\times 141.61\\\\$

after solve the above equation we will get

22,500x + 510y = 4248.3 (iii)

$75\times (330x + 30y) = 75\times 75.90$

after solve the above equation we will get

22500x + 2250y = 5692.5 (iv)

After deducting the equation (iii) and (iv) we will get

1740 y = 1444.2

After Dividing by 15 both sides,

116y = 96.28

So, Katrina simplify the above system using linear equation and reach at the equation that is

116 y = 96.28

By Division property of equality defines that divide the equal no. of both sides of an equation:

by Division of 116 to both sides of an equation, to get y:

$\frac{116y}{116} = \frac{96.28}{116}$

y = 0.83

So, the natural gas is $0.83 per unit

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3 years ago