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STALIN [3.7K]
3 years ago
7

Hii!

Mathematics
2 answers:
GREYUIT [131]3 years ago
5 0

Answer:

11 / 5

Step-by-step explanation:

2 / 5 + 9 / 5

= ( 2 + 9 ) / 5

= 11 / 5

Usimov [2.4K]3 years ago
5 0

Answer:

\frac{2}{5}  +   \frac{9}{5}  =  \frac{11}{5}

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The solution is an ordered pair and I can’t figure it out.
trasher [3.6K]
The answer is -8 because if you do the math
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3 years ago
If triangle DEF is an isosceles triangle with DE is congruent to EF, find x and the measure of each side
Rudik [331]

Step-by-step explanation:

Given that,

DE = 8x - 13

EF = 5x + 17

DF = x + 21

Also,

DE = EF

which means that,

8x - 13 = 5x + 17

8x - 5x = 17 + 13

3x = 30

x = 30/3

x = 10

Now,

DE = 8x - 13 = 8×10 - 13 = 80 - 13 = 67cm

EF = 5x + 17 = 5×10 + 17 = 50 + 17 = 67cm

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3 years ago
Is -13.1 + (-19) rational or irrational
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Answer:

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Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A pharmacist has 40% and 60iodine solutions on hand. How many liters of each iodine solutions will be required to produce 4 lite
Schach [20]

A pharmacist has 40% and 80% of iodine solutions on hand. How many liters of each iodine solution will be required to produce 4 liters of a 50% iodine mixture?

.

Let x = liters of 40% iodine

then

4-x = liters of 80% iodine

Using algebra:

.40x + .80(4-x) = .50(4)

.40x + 3.20-.80x = 2

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x = 4 liters (40% iodine)

80% iodine:

4-x = 4-4 = 0 liters needed (80% iodine)

4 0
3 years ago
At the restaurant, your family orders a subtotal of $46.55. Add 6% sales tax and 18% tip. What is the total?
ICE Princess25 [194]

Answer:

Step-by-step explanation:

Now,

if you add the tip after the sales tax,

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we add tip

49.34*(18/100)=8.88

total cost 49.34+8.88=58.22

8 0
3 years ago
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