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tiny-mole [99]
3 years ago
14

An auto mechanic ordered eight car spark plugs and four truck spark plugs. Car spark plugs cost $.75, and truck spark plugs cost

$3.00 apiece. Use the distributive property to find the total cost of these parts.
Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0
The first thing we should know is the definition of commutative property.
 Commutative property:
 The distributive property of multiplication over addition in elementary algebra is that in which the result of a number multiplied by the sum of two or more addends is equal to the sum of the products of each summand by that number. In algebraic terms we have then:
 4 * ((2 * 0.75) + (3)) = (8 * 0.75) + (4 * 3) = 6 + 12 = 18 $
 answer:
 the total cost of these parts is $ 18
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A pack of 6 cans of pop costs £1.80. A pack of 10 cans of pop costs £3.50.
Lelechka [254]

Let us look at the cost per can of both packs.

Cost of can in 6-pack = 1.80/6

                                      = £0.30

Cost of can in 10-pack = 3.50/10

                                     = £0.35

Since the cost of a can in the 6-pack is cheaper, it would be better to buy the 6-pack if you were looking to save money.

5 0
3 years ago
Question
Zolol [24]
D. The last one because slope is -99 which is decresed
5 0
2 years ago
Which equation represents a circle that contains the point (-5, -3) and has a center at (-2, 1)?
oksian1 [2.3K]

Answer:

(x+1)2+(y−2)2=5

Explanation:

The general form for a circle with center  

(a,b) and radius r is XXX(x−a)2+(y−b)2=r2

With center  (−1,2) and given that  (0,0) is a solution (i.e. a point on the circle),according to the Pythagorean Theorem: XXX r 2=(−1−0)2+(2−0)2=5

and since the center is  (a,b)=(−1,2)by applying the general formula we get:XXX(x+1)+(y−2)2=5

Step-by-step explanation:

its already in the answer

3 0
2 years ago
Determine whether each of the following sequences are arithmetic, geometric or neither. If arithmetic, state the common differen
Andru [333]

\qquad\qquad\huge\underline{{\sf Answer}}

\textbf{Let's see if the sequence is Arithmetic :}

\textsf{If the difference between successive terms is } \textsf{equal then, the terms are in AP}

  • \textsf{-34 - (-29) = -5 }

  • \textsf{-39 - (-34) = -5 }

\textsf{Since the common difference is same, } \textsf{we can infer that it's an Arithmetic progression} \textsf{with common difference of -5}

5 0
2 years ago
Read 2 more answers
Pete owes his brother $75 from five weeks of borrowing
saul85 [17]

Answer:

75 is the mean

Step-by-step explanation:

multiply 75 and the 5 weeks

375

375/5

75

7 0
3 years ago
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