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poizon [28]
3 years ago
15

Can you find the sum [5.5+ (-2.3)] + (-5.5+2.3) without performing any additions?

Mathematics
1 answer:
Hunter-Best [27]3 years ago
7 0
Yes
[5.5+(-2.3)] can be rearranged to be 5.5-2.3. It will be 3.2
(-5.5+2.3) can be rearranged to be 2.3-5.5. It will be -3.2
3.2-3.2=0
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JOURNAL 5.3.4. <br><br> PLZZZ HELP, I NEED 1-9
aniked [119]

Answer:

8?

Step-by-step explanation:

7 0
3 years ago
495x43
Mashcka [7]

Answer:a) $5.64  b)  21 ounces of tea leaves

Step-by-step explanation:

Step 1

5 ounces of tea leaves can be bought with  $2.35

1 ounce of tea can be bought with =$2.35/5 =$0.47

12 ounces at the same rate  can be bought with

=12 x $0.47 = $5.64

b) 5 ounces of tea leaves can be bought with  $2.35

? Ounces of tea leaves can be bought with $10

$2.35 =5 ounces of tea

$10 = ? ounces of tea

           = (10 x  5)/2.35

           =50/2.35

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5 0
3 years ago
Which of the following statements is true?
Murrr4er [49]

Option A - (0,0) is a solution to both the equations. is the only true statement.

Step-by-step explanation:

Step 1 :    

Given  2 equations are

n = m

n = 4m

Step 2:

(0,0) is a solution to both the equations.

This statement is true as substituting the point , the equations are true.

Step 3 :

Every solution to n=m is also a solution to n=4 m

Take the point (5,5)

This point lies on the equation n = m, as both the x and y co ordinates are same

n = 4 m = 4 × 5 = 20

So here for n = 5, n = 4 m is not true and hence this point is not a solution for the second equation thought it is a solution for the first equation

Hence this statement is not true

Step 4:

The graph of the solutions is  parallel lines

this statement is not true because the 2 lines intersect at (0,0) as observed from step 2.

Step 5 :

No point on the line n=m is also a point on n=4 m

This statement is not true because (0,0) is a point on both the lines.

Step 6 :

Answer :

Option A - (0,0) is a solution to both the equations. is the only true statement.

6 0
3 years ago
F(x)=2x^2 what is f(3)
bulgar [2K]

Hey there! :)

Answer:

f(3) = 18.

Step-by-step explanation:

Given:

f(x) = 2x², solve for f(3).

Simply substitute in 3 for x:

f(3) = 2(3)²

f(3) = 2(9)

f(3) = 18.

4 0
3 years ago
James is planning to spend $425 on food for his vacation this summer. This is 34% of his total vacation budget. How much is Jame
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