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Rzqust [24]
3 years ago
12

The time it takes a brick layer to lay bricks varies directly with the number of bricks. The brick layer's data is shown in the

table. If x = time, and y = the number of bricks, which equation models the brick layer's direct variation?
Mathematics
2 answers:
valentinak56 [21]3 years ago
8 0

Answer:

50

Step-by-step explanation:

2=100

half of a hundred is 50

common sense:)

Crank3 years ago
7 0
Rite it by 2.06 then add it by 1
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Amy joins a meal delivery service. Each family meal is $15, and there is a monthly flat shipping fee of $20. If Amy orders eight
8090 [49]

Answer: 140$

Step-by-step explanation: 15$ times 8 meals plus 20 dollar fee eaquals 140$

4 0
2 years ago
Find an equation for the nth term of the arithmetic sequence.
amm1812

Answer:

a_n=-301 +37(n-1)

Step-by-step explanation:

arithmetic sequence formula:  a_n=a +(n-1)d

where a is the first term and d is the common difference

Given:

  a_{10}=32

⇒ a +(10-1)d=32

⇒ a+9d=32

Given:

    a_{12}=106

⇒ a +(12-1)d=106

⇒ a+11d=106

Rearrange the first equation to make a the subject:

a = 32 - 9d

Now substitute into the second equation and solve for d

    (32 - 9d) + 11d = 106

⇒ 32 + 2d = 106

⇒ 2d = 106 - 32 = 74

⇒ d = 74 ÷ 2 = 37

Substitute found value of d into the first equation and solve for a:

a + (9 x 37) = 32

a + 333 = 32

a = 32 - 333 = -301

Therefore, the equation is: a_n=-301 +37(n-1)

4 0
2 years ago
Helen walk 2 3/4 miles per day. Bill run's 10 miles every 4 days. In 4 days, who runs the longest distance
Gennadij [26K]
Helen runs the longest distance in 4 days.

Helen (In 4 days): 2.75 x 4 = 11

Bill (In 4 days): 10

11 (Helen) > 10 (Bill), so therefore Helen runs the longest distance in 4 days.
5 0
3 years ago
The tape diagram represents an equation.<br><br> Write an equation to represent the image.
goldfiish [28.3K]

Answer:

m + 1/4 = 2/3

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
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faust18 [17]

In this question , we have to find, which option represents inverse functions.

Let's check out option b

Let it be y

So we have

y = \frac{x+3}{4x-2}

Switching x and y and solving for y,

x = \frac{y+3}{4y-2}

Performing cross multiplication

4xy -2x = y+3

Combining like terms

y(4x-1) = 3+2x

y = \frac{2x+3}{4x-1}&#10;\\&#10;f^{-1} (x) = \frac{2x+3}{4x-1}

Which is same as of the other function.

So correct option is b .

6 0
3 years ago
Read 2 more answers
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