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3 years ago

Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)?

Mathematics

1 answer:

Anna11 [10]3 years ago

8 0

Answer:

808935(+57_)/868

628)+6_-674'+7 36;()87&daimatere

Step-by-step explanation:

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For the function f (x)= 3\4x −5ˏ what is f (16)

iris [78.8K]

Basically you substitute 16 in for x.
f(16) = 3/4(16) - 5
f(16) = 12 - 5
f(16) = 7

6 0

3 years ago

Read 2 more answers

A cafeteria sells 30 drinks every 15 minutes. Predict how many drinks the cafeteria sells every hour. Help!

coldgirl [10]

Answer:

120 drinks and hour

Step-by-step explanation:

15 min is a quarter of an hour so we just got to times the 30 drinks by 4. Simple math really.

Hope this helps:)

6 0

4 years ago

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Work out the point of intersection of the lines 2x + 3y = 11 and 2y = 13 – 3x

borishaifa [10]

Answer:

x = 3.4

y = 1.4

Step-by-step explanation:

2x + 3y = 11

2y = 13 – 3x, then y = (13 - 3x)/2

substitute for y:

2x + 3((13 - 3x)/2) = 11

reduce:

2x + (39 - 9x)/2 = 11

reduce:

2x + 19.5 - 4.5x = 11

subtract 19.5 from both sides of the equation and combine for x:

-2.5x = -8.5

divide both sides by -2.5:

x = 3.4

y = (13 - 3(3.4))/2 = (13 - 10.2)2 = 1.4

3 0

3 years ago

Paper 3 Foundation Practice Questions. Monday 13th June 2022

erica [24]

All you have to do is divide the number by the denominator which is 8. So 510 divided by 8.

Which will give you 63.75.

Then you times it by the numerator which is 3 so 63.75 x 3

And you are left with £191.25 which is 3/8 of 510

7 0

2 years ago

Integrate the following. ∫<img src="https://tex.z-dn.net/?f=84dx" id="TexFormula1" title="84dx" alt="84dx" align="absmiddle" cla

bogdanovich [222]

Answer:

$\displaystyle \int {84} \, dx = 84x + C$

General Formulas and Concepts:

Calculus

Integration

Integrals
Definite/Indefinite Integrals
Integration Constant C

Integration Rule [Reverse Power Rule]: $\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C$

Integration Property [Multiplied Constant]: $\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx$

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle \int {84} \, dx$

Step 2: Integrate

[Integral] Rewrite [Integration Property - Multiplied Constant]: $\displaystyle \int {84} \, dx = 84\int {} \, dx$
[Integral] Reverse Power Rule: $\displaystyle \int {84} \, dx = 84x + C$

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Integrations

4 0

3 years ago