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2 years ago

Can some one help me graph y=4x + 5 I keep doing something wrong.

Mathematics

1 answer:

Delvig [45]2 years ago

6 0

Answer:

y = - 3x + 4

Step-by-step explanation:

Line is passing through the points (1, 1) & (0, 4)

Slope of line = (4-1)/(0-1) = 3/(-1) = - 3

Equation of line

y = mx + b

Here m = - 3, b = 4

y = - 3x + 4

Using point (1, 1)

y - 1= - 3(x - 1)

y = - 3x +3 +1

y = - 3x + 4

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olga nikolaevna [1]

Answer:

Thomas can buy 4 strands.

Step-by-step explanation:

We need to round $11.86 to the nearest dollar, which is $12.

Now we ask ourselves, "how many times does 12 go into 50 without going over?"

12 × 4 = 48

12 can go into 50 4 times.

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3 years ago

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2 a. An airplane flies with a constant speed of 680 km/h. How far can it travel in 2 hours?

Readme [11.4K]

Answer:

1360 km/h

Step-by-step explanation:

680 km/h x 2hr = 1360

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3 years ago

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Suppose you bought a pizza for $8.00. You also bought a salad but you can not remember how much you paid and you can not find th

Darina [25.2K]

The best equation would be A.

with A you get to calculate what is the value of $.

8 + $ = 10 (10 is the total value of your receipt and 8 is the price of pizza)
$ = 10 - 8 (we transfer the price of pizza on the other side to the total amount of your receipt and calculate the remaining amount)
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We see that the remaining amount is 2$, which means the salad cost s2$ :)

7 0

3 years ago

Surface area of a cylinder radius=10 height=15

Virty [35]

Answer:

1570

Step-by-step explanation:

the formula for surface area of a cylinder is:

A= 2πrh + 2πr²

π aka pi = 3.14

r = 10

h = 15

so now plug in the numbers

A = 2(3.14)(10)(15) + 2(3.14)(10²)

A = 942 + 2(3.14)(100)

A = 942 + 628

A = 1570

5 0

3 years ago

At a particular restaurant, each pizza roll has 60 calories and each mini hotdog has 70 calories. A combination meal with pizza

PolarNik [594]

Answer:

There are 9 pizza rolls and 12 mini hotdogs in the meal.

Step-by-step explanation:

We are given the following in the question.

Let x be the number of pizza rolls sold and y be the number of mini hotdogs in the combination meal.

Total number of items in combination meal = 21

Thus, we can write the equation:

$x + y = 21$

Calorie in a pizza roll = 60

Calorie in a mini hotdog = 70

Total calories = 1380

Thus, we can write the equation:

$60x + 70y = 1380$

Solving the two equations, we get,

$60x + 70y - (60x+60y) = 1380 - 60(21) \\10y = 120\\\Rightarrow y = 12\\\Rightarrow x = 21-12 = 9$

Thus, there are 9 pizza rolls and 12 mini hotdogs in the meal.

4 0

3 years ago