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Luba_88 [7]
3 years ago
10

These 2 questions I kinda need help ?

Mathematics
2 answers:
Irina18 [472]3 years ago
8 0
For the first one all you need to is divide both sides by two to get it alone

Aloiza [94]3 years ago
5 0
Number 6 is 12
number 7 is 36
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Justin needs to buy plastic forks. Brand A has a box of 12 forks for $1.12. Brand B has a box of 25 forks for $2.69. Find the un
Eduardwww [97]

Answer:

Unit price of brand 'A' = $ 0.104

Unit price of brand 'B' = $ 0.1076

One should buy brand 'A' since it less costly.

Step-by-step explanation:

The given data are :-

Brand 'A' has 12 forks which costs $ 1.25.

Brand 'B' has 25 forks which costs $ 2.69.

We have to calculate unit price of each brand and find the best brand to buy according to the unit price.

First calculating the unit price of brand 'A'.

∵ 12 forks costs a total price of $1.25.

∴ 1 forks will cost  =  $ (\frac{1.25}{12})  = $ 0.104

Similarly we can calculate the unit price of brand 'B'.

∵ 25 forks cost a total amount of $2.69

∴ 1 forks cost = $ (\frac{2.69}{25} )  = $ 0.1076

Here we can see that unit price of brand 'A'  is less than unit price of brand 'B'. So to buy the brand 'A' forks will be productive.

7 0
3 years ago
Given sinx=0.9 , what is cosx ?
Scorpion4ik [409]
\bf \textit{Pythagorean Identities}
\\ \quad \\
sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)
\\\\\\
cos(\theta)=\pm\sqrt{1-sin^2(\theta)}\\\\
-----------------------------\\\\
thus
\\\\\\
cos(x)=\pm \sqrt{1-(0.9)^2}
8 0
3 years ago
Can you figure out what the answer is here?
Andreas93 [3]

Answer:

20

Step-by-step explanation:

Triangle = 10

circle = 5

square = 4 (half square = 2)

10 + 5 x 2 =20

Hope this helps

7 0
3 years ago
Read 2 more answers
What is the answer to 28 3/8- 19 5/6 and 18 2/5- 9 13/15
ZanzabumX [31]

Each of the problems asks you to a similar idea: get a common denominator with  the fractions and then subtract.

Problem 1: 28 3/8 - 19 5/6

The factors of 8 are 2, 2, and 2. The factors of 6 are 2 and 3. We take one two that's repeated, two more twos from 8, and a 3 for the common denominator. So, 2 * 2 * 2 * 3 = 24 is the lowest common denominator (LCD).

Now  change the fractions to the common denominators

3/8 = ? / 24         We go from 8 to 24 multiplying by 3, so 3 multiplied by 3 is 9.

5/6 = ? / 24       We go from 6 to 24 multipling by 4, so 5 multiplied by 4 is 20.

Then,

28 3/8 - 19 5/6

= 28 9/24 - 19 20/24        <----use common denominators

= 27 33/24 - 19 20/24       <--- borrow from the whole number

= 8 13/24                           <---- subtract whole numbers and fraction numerators


Problem 2 works similarly to problem 1, with an LCD of 15.

18 2/5 - 9 13/15

= 18 6/15 - 9 13/15

= 17 21/15 - 9 13/15

= 8 8/15


Thus the differences are 8 13/24 (1st) and 8 8/15 (2nd).

3 0
3 years ago
22.a) A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day.
iVinArrow [24]

Answer: Ksh 6144

Step-by-step explanation:

On Thursday, a fruit vendor bought 1948 oranges on a Thursday and sold 750. The number of oranges left will be: = 1948 - 750 = 1198

On n Friday, he sold 240 more oranges than on Thursday. This means the number of oranges sold is: = 240 + 750 = 990.

The number for f oranges left will then be: = 1198 - 990 = 208

On Saturday, he bought 560 more

oranges, the total oranges that the vendor has now will be:

= 208 + 560 = 768

Since sold all the oranges he had at a price of Ksh. 8 each, the amount if money made will be:

= Ksh 8 × 768

= Ksh 6144

The vendor made Ksh 6144

7 0
3 years ago
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