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3 years ago

The table below shows Abigail's earnings on the job.

Mathematics

1 answer:

marta [7]3 years ago

4 0

Answer:

Option (2)

Step-by-step explanation:

In this question we have to calculate the rate of earning or proportionality constant of Abigail.

Since, earning of Abigail (y) ∝ Time worked (t)

y = kt

Here, k = Proportionality constant

From the table attached,

If y = $709.80 and x = 21 hours

709.80 = 21k

k = $\frac{709.8}{21}$

k = $33.80 per hour

Therefore, rat of earning or proportionality constant is $33.80

Option (2) will be the correct option.

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lapo4ka [179]

Answer:

interest: 1,800

total: 13,800

Step-by-step explanation:

7 0

3 years ago

I need help! I will give brainliest, if correct!

nekit [7.7K]

kx + z = 3 means z = 3 - kx. Substitute this into the first two equations:

x + y + 3 (3 - kx) = 10 ==> (1 - 3k) x + y = 1

-4x + 3y + 5 (3 - kx) = 7 ==> (-4 - 5k) x + 3y = -8

Multiply through the first equation by -3 :

-3 ((1 - 3k) x + y) = -3 (1) ==> (-3 + 9k) x - 3y = -3

Add this to the second equation to eliminate y :

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-7 + 4k = 0 ==> k = 7/4

5 0

3 years ago

Read 2 more answers

A coach is buying snacks for 22 players at a soccer match. She pays a total of $77 to

liq [111]

Answer:

$33.00 for 22 bottles of water and 1.50 for each bottle.

Step-by-step explanation:

The amount for energy bar for 22 players=22x2=44

The amount for the water=77-44=33

The amount for each bottle=33 divided by 22=$1.50

7 0

3 years ago

Please help me with this

Vikentia [17]

Answer:

see explanation

Step-by-step explanation:

2πr (230/360) = 2(3.142)(40) = 160.59 cm = circumference

160.59 = 2πr

base radius = 25.56 cm

Use pythagorean formula for semi-vertical height

40² = h² + 25.56²

h = 30.77 cm

volume = 1/3πr²h

V = 1/3(3.142)(25.56)²(30.77) = 21,053.98 cm³

6 0

4 years ago

The function M(s) = 225 + 0.65s represents the material cost of manufacturing gardening scissors when s scissors are produced. T

Llana [10]

Answer:

$\frac{279 + 1.8s}{s}$

Step-by-step explanation:

The material cost of manufacturing gardening scissors when s scissors are produced : $M(s) = 225 + 0.65s$

The labor cost for producing s scissors: $L(s) = 54 + 1.15s$

So, total cost of producing s scissors = $M(s)+L(s)$

= $225 + 0.65s+54 + 1.15s$

= $279 + 1.8s$

So, total cost for s scissors = $279 + 1.8s$

So, manufacturing cost for 1 scissor= $\frac{279 + 1.8s}{s}$

Hence the manufacturing cost per scissors is $\frac{279 + 1.8s}{s}$

3 0

3 years ago