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3 years ago

Find the sum 3/5 plus 1/2

1 answer:

5 0

First you have to do 3/5 times 2/2 and 1/2 times 2/2 because you have to find there common denominator. Then you add up the numerators. But make sure you don't add up the denominators. Hope this helped. And please mark me the brainiest.

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A welcome kit contains 3 grocery store and seven drugstore coupons. The coupons are worth $45. Another welcome kit contains thre

Kobotan [32]

Answer:

The value of each grocery store coupon is $6

Then the value of each drugstore coupon is $3.

Step-by-step explanation:

Let's define:

G = value of a grocery store coupon.

D = value of a drugstore coupon.

We know that:

"A welcome kit contains 3 grocery store and seven drugstore coupons. The coupons are worth $45"

We can write this as:

3*G + 7*D = $45

And we also know that:

"Another welcome kit contains three grocery store coupons and six drugstore coupons worth $42"

We can write this as:

3*G + 6*D = $42

Then we have the system of equations:

3*G + 7*D = $45

3*G + 6*D = $42

To solve this, we can isolate the term "3*G" in one of the equations (because it appears on both of them)

Let's isolate it on the second equation:

3*G = $42 - 6*D

Now let's replace this on the first equation:

($42 - 6*D) + 7*D = $45

$42 + D = $45

D = $45 - $42 = $3

Then the value of each drugstore coupon is $3.

And we also have the relation:

3*G = $42 - 6*D

We can just replace the value of D to get:

3*G = $42 - 6*$3 = $42 - $24 = $18

G = $18/3 = $6

The value of each grocery store coupon is $6

4 0

3 years ago

Which graph represents the equation y = x-3?

AlekseyPX

Answer:

The first

Step-by-step explanation:

The intercept is a negative so the line will be going the opposite way

6 0

3 years ago

Read 2 more answers

Use the following information to complete parts I, II, and III. 1 hour=3600 seconds

icang [17]

Answer:

I) There are $8.760\times 10^3$ hours in 1 year.

II) The exact number of hours in one year is $8.76582\times 10^3$ hours.

Step-by-step explanation:

Given : 1 hour=3600 seconds

1 year = 31556952 seconds.

To find :

I) Use scientific notation to estimate the number of hours in one year.

1 day = 24 hours

1 year = 365 days

So, number of hours in one year is given by,

$n=24\times 365$

$n=8760$

In scientific notation,

$8760=8.760\times 10^3$

So, there are $8.760\times 10^3$ hours in 1 year.

II) 1 year = 31556952 seconds.

1 hour = 3600 seconds

In one year the number of hour is given by,

$n=\frac{31556952}{3600}$

$n=8765.82$

In scientific notation,

$8765.82=8.76582\times 10^3$

So, the exact number of hours in one year is $8.76582\times 10^3$ hours.

III) In two or more complete sentences, compare your answers to parts I and II. In your comparison, discuss similarities and differences.

The exact numbers of hours using 365 days is 8760 which is written as $8.760\times 10^3$ in scientific notation but using the given data we get $8.76582\times 10^3$ hours.

Comparing these answers the first one has only 3 significant figures and the second answer has six significant figures.

If we round these we get $8.8\times 10^3$ hours which has two significant numbers.

8 0

4 years ago

M 26= 149º. Find m2 l and m 2 4. 2 m2 1 = 5 m2 = 0 6 8<br>please help me.

Sever21 [200]

Answer:

m-1: 31 degrees & m-4: 149 degrees

Step-by-step explanation:

we can start with im very bad at explaining but will try my best.

Step 1:

look at what you're given and remember the rules and principles of finding angles. so were given m-6. when having parallel lines with a perpendicular line the opposing side of the intercept will be the same. meaning that if m-6 is 149 then its opposing side, m-8, will have the same degree. but we know that with straight lines are 180 degrees so now that we have that out of the way we can move to step 2

Step 2:

you have the given and the rules to go with, so now we will begin to apply it. like i was saying a line is 180 degrees, and when we put a line through that we end up having different degrees. although theres an intercept the line is still 180 degrees. so to find the aligning angle we just have to subtract the given angle by our own knowledge.

180-149=31 this aligns with everything in this. there are only 2 angles necessary. 149 and 31, all we have to do now is plug it in.

M-5: 31 degrees

m-6: 149 degrees

m-7: 31 degrees

m-8: 149 degrees

Step 3:

all those annoying angles we just got through, guess what, all you have to do is apply those same angles with m1-m4

M-1: 31 degrees

M-2: 149 degrees

M-3: 31 degrees

M-4: 149 degrees

5 0

3 years ago

Help me pleaseee I’ll mark brainliest!!

trasher [3.6K]

Answer:

your answer would be 339

Step-by-step explanation:

i used a circle calculator

you would multiply 2.25 and 24

which gives you 54

and you wanna find the circumference i dont knowhow to do that but it would be 339

8 0

3 years ago