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3 years ago

15

Timothy bought 10 cookies for $5.00.

1 answer:

ioda3 years ago

6 0

Answer:

(1 , 2), (2 , 4), (3 , 6), and so on

Step-by-step explanation:

10/5 = 2, so each cookie costs $2. So, for every time you increase x by one, you increase y by two.

1 = $2 2 = $4 3 = $6 4 = $8 etc.

hope this helps :)

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Mark gets picked up by the bus at 7:40 he arrives at school at 8:10 how long does it take to get to school

Elodia [21]

You could do this in two ways, you could either subtract immediately or convert the time given in hours into minutes
STEP 1:
8:10
- 7:40
which will give 0:30
STEP 2:
8 hours 10 minutes into minutes is
(8 * 60) +10 = 490 minutes
7 hours 40 minutes into minutes is
(7*40) + 40 = 460 minutes
490 - 460
= 30minutes

3 0

3 years ago

Read 2 more answers

May someone help me with these 2 again

cestrela7 [59]

Answer:

1. 180

2. x = 31

Step-by-step explanation:

1. the sum of the interior angles of every triangle is always 180

2. using what we know from problem 1, we can create an equation:

x + 10 + 2x - 5 + 2x + 20 = 180

add like terms: 5x + 25 = 180

subtract 25 from both sides: 5x = 155

divide both sides by 5: x = 31

3 0

3 years ago

jenns age is 3 years less than marks age the sum of their ages is 30 let m be marks age find Jenna age

melamori03 [73]

Answer:

you could do 27+x=30

Step-by-step explanation:

7 0

3 years ago

Consider the equation below.

Korvikt [17]

Answer:

Equation in square form:

$y=3(x+5)^2-4$

Extreme value:

$(h,k)=(-5,-4)$

Step-by-step explanation:

We are given

$y=3x^2+30x+71$

we can complete square

$y=3(x^2+10x)+71$

we can use formula

$a^2+2ab+b^2=(a+b)^2$

$y=3(x^2+2\times x\times 5)+71$

now, we can add and subtract 5^2

$y=3(x^2+2\times x\times 5+5^2-5^2)+71$

$y=3(x^2+2\times x\times 5+5^2)-3\times 5^2+71$

$y=3(x+5)^2-75+71$

So, we get equation as

$y=3(x+5)^2-4$

Extreme values:

we know that this parabola

and vertex of parabola always at extreme values

so, we can compare it with

$y=a(x-h)^2+k$

where

vertex=(h,k)

now, we can compare and find h and k

$y=3(x+5)^2-4$

we get

h=-5

k=-4

so, extreme value of this equation is

$(h,k)=(-5,-4)$

6 0

3 years ago

Read 2 more answers

Dean downloaded 9 apps onto his tablet in 12 seconds. At this rate, how many apps could he download in one minute?(12 seconds =1

Maurinko [17]

Answer:

45 apps

Step-by-step explanation:

1 minute has 60 seconds

If 12 seconds equals to 9 apps

60 seconds equals to x apps

Cross multiplying

$x=\frac {60\times 9}{12}=45 apps$

Therefore, Dean downloads 45 apps in 1 minute

6 0

3 years ago