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3 years ago

What are the coefficients in the expression 4x - 7y + 5 ?

Mathematics

2 answers:

3241004551 [841]3 years ago

6 0

Answer:

4 and -7

Step-by-step explanation:

a coefficient is a number that is being multiplied with a variable (ex:5a) in this case the coefficients are 4 and -7

PSYCHO15rus [73]3 years ago

5 0

Answer:

4 and -7

Step-by-step explanation:

the coefficient is the number in front of the letter.

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at joe's cafe 1 cup of coffee and 3 donuts is $4.10 and 2 cups of coffee and 2 donuts is $4.60, how much is 1 count? 1 cup of co

gtnhenbr [62]

C + 3d = 4.10.....multiply by -2
2c + 2d = 4.60
----------------
-2c - 6d = - 8.20 (result of multiplying by -2)
2c + 2d = 4.60
-----------------add
-4d = - 3.60
d = -3.60 / -4
d = 0.90 <==== cost of 1 doughnut

c + 3d = 4.10
c + 3(0.90) = 4.10
c + 2.70 = 4.10
c = 4.10 - 2.70
c = 1.40 <==== cost of 1 coffee

5 0

4 years ago

Read 2 more answers

First to answer, gets BRAINLIEST <br><br> (5x6)(-8+2)(4÷8)(0)(-.5-3)(-10+2) =

Arturiano [62]

Answer:

Step-by-step explanation:

pretty easy tbh

7 0

3 years ago

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Answer the Question the volume based Question. I will make uh brainliest + 50 points

Dimas [21]

To show the total capacity of container B is 132 cm³

volume = unit rate × time taken

volume = 6 cm³ × 22

volume = 132 cm³ ∴ Hence proved.

<h3 /><h3><u>Find radius</u></h3>

$\sf volume \ of \ cone = \dfrac{1}{3} \pi r^2 h$

===================

$\rightarrow \sf \dfrac{1}{3} * \dfrac{22}{7} * r^2 * 14 = 132$

<em>simplify</em>

$\rightarrow \sf \dfrac{44}{3} * r^2= 132$

<em>change sides</em>

$\rightarrow \sf r^2= \dfrac{132(3)}{44} = 9$

<em>square root both sides</em>

$\rightarrow \sf r = 3$

∴ Hence the radius of cone (Shape B is 3 cm)

<h3><u>To show the time taken</u></h3>

volume = unit rate × time taken

$\sf volume \ of \ hemi -sphere = \dfrac{2}{3} \pi r^3$

=========================

$\sf \rightarrow \dfrac{2}{3} \pi r^3 = 6 * time \ taken$

<em>Insert values</em>

$\sf \rightarrow \dfrac{2}{3} *\dfrac{22}{7} \ r^3 = 6 * time \ taken$

<em>exchange sides</em>

$\sf \rightarrow time \ taken = \dfrac{2}{3} *\dfrac{22}{7} \ r^3 *\dfrac{1}{6}$

<em>simplify following</em>

$\sf \rightarrow time \ taken = \dfrac{22}{63}r^3$

4 0

3 years ago

In a grocery store, a bag of sweets marked for $5 was sold at a discount of 10%. What was the selling price for the bag of sweet

kumpel [21]

The correct answer is 0.5.

4 0

3 years ago

5+4D =37 <br> HELP ME PLEASE

Nostrana [21]

Ok so here is how I would solve it.
5 + 4d = 37
-5 = -5
4d = 32
/ 4 / 8
d = 8
basically i subtract 5 from both sides being left with 4d = 32 and then divided 4 from both sides getting 8 = d

5 0

4 years ago

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