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larisa [96]
3 years ago
7

4/5 plus what equals 1/2

Mathematics
2 answers:
Assoli18 [71]3 years ago
6 0

Answer:

-0.3

Step-by-step explanation:

4/5 +x= 1/2

0.8+ x= 0.5

-0.8. -0.8

‐--------------------

X= -0.3

VARVARA [1.3K]3 years ago
4 0

Answer:  -3/10

Step-by-step explanation: A positive and a negative will subtract.

1. Find the common denominator (8/10)

2. simce 8/10 is greater than 1/2 you need to add a negative to get 8/10 a lower value

3. subtract 5/10 or 1/2 from 8/10 to figure out what gives you the correct answer

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. How can you determine if two ratios are equivalent. Be sure to include examples to support you response.
BabaBlast [244]

Answer:

By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent. Multiply both numbers in the first ratio by the second number of the second ratio. For example, if the ratios are 3:5 and 9:15, multiply 3 by 15 and 5 by 15 to get 45:75.

7 0
3 years ago
As an estimation we are told 5 miles is 8 km. <br> Convert 2.5 miles to km.
Digiron [165]

Answer:

4km

Step-by-step explanation:

In order to find the answer to this question you must simply divide.

5m=8km

2.5m=4km

8\div2=4

5=2.5+2.5

=4km

Hope this helps

7 0
2 years ago
The instructions on your aspirin bottle say take two 200-milligram aspirin. How many grams is the total dose?
REY [17]

Answer:

[see below]

Step-by-step explanation:

There are 0.001 grams in a milligram. (1,000 milligrams in a gram.)

\frac{200}{1000}=0.2

The total dose should be 0.2 grams.

Hope this helps.

7 0
2 years ago
. Mark has $20 in his bank account. He saves $5 each week. How much money does Mark have in his account after 9 weeks? Use x to
DanielleElmas [232]

Answer:

$135

Step-by-step explanation:

id k how to explain but since he saves 5 dollars he basically has 15 dollars in his bank account u just need to multiply 15 with however many weeks he saves up for

5 0
2 years ago
X2 = 14 − 3x is my question​
vladimir1956 [14]
X=14/5 if you want solution here:
Use the commutative property to reorder the terms: 2x=14-3x
Move the variable to the left - hand side and change sign: 2x+3x=14
Collect like terms: 5x=14
Divide both sides of the equation by 5: x=14/5
5 0
2 years ago
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