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jonny [76]
2 years ago
12

I badly want the answer to these☠️​

Mathematics
1 answer:
Vedmedyk [2.9K]2 years ago
5 0

Step-by-step explanation:

1. 4/10 + 15/10

The two fractions have like denominators so you can add the numerators.

Then:

4+15/10=19/10

This fraction cannot be reduced.

The fraction

19/10

is the same as

19÷10

Convert to a mixed number using

long division for 19 ÷ 10 = 1R9, so

19/10=19/10

Therefore:

4/10+15/10=1 9/10

2. 50/20+60/20=5 1/2

3. \sf \frac{60}{40}  +  \frac{80}{40} = 3 \frac{1}{2}

4. \sf\frac{90}{60}  +  \frac{80}{60} = 2 \frac{5}{6}

5. \sf \frac{120}{40}  +  \frac{80}{40} = 5

6. \sf \frac{120}{40}  +  \frac{140}{40} = 6 \frac{1}{2}

7. \sf \frac{110}{70}  +  \frac{40}{70} = 2 \frac{1}{7}

8. \sf \frac{45}{5}  +  \frac{60}{5} = 21

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P(7, - 2); y= 7x+4= 4<br><br><br> PLEASE HELP
Mars2501 [29]

Answer:

x= - 16

Step-by-step explanation:

substitute y=0 then multuply both sides move the variable to the left and change the sign.

3 0
3 years ago
A jewelry sells gold and platinum rings. Each ring is available in eight styles and is fitted with one of ten gemstone
katrin [286]

Answer: There are 160 different rings.

Step-by-step explanation:

The question is missing, i guess you want to know the number of different rings that the jewelry has:

For the material we have 2 options.

For the stile we have 8 options

For the gem we have 10 options.

Now, the total number of possible combinations is equal to the product of the number of options for each selection, this is:

Combinations = 2*8*10 = 160

4 0
3 years ago
The Rodriguez family went to dinner at Pasta Palace. Mr. Rodriguez ordered a meal for $6.25; Mrs. R ordered a meal for $7.50; th
Romashka-Z-Leto [24]
Given:
Mr. Rodriguez :                          6.25
Mrs. R                                        7.50
2 children @ 4.99 each       <u>      9.98</u>
Subtotal:                                 23.73
Sales tax 7.25%                        1.72        *23.73 x 7.25%
Total tip 15%                         <u>    3.56  </u>      *23.73 x 15%
Grand total                            $29.01


Tips should be applied to pre-tax amount not post-tax. However, some companies compute tip based on post-tax amount. This means that the tip you are paying is computed based on the total amount of the meal as well as the sales tax you paid for the meal.

6 0
3 years ago
HELPP FOR BRIANLEST PLEASS
Alex777 [14]

Answer:

first one

Step-by-step explanation:

uh yeah the first one because it the second one to the original problem

6 0
2 years ago
Read 2 more answers
The anithistamine Benadryl is often prescribed for allergies. A typical dose for a 100-pound person is 25 mg every six hours. Fo
Firdavs [7]

Answer:

56 chewable tablets

280mL liquid Benadryl

Step-by-step explanation:

For the first part:

First we need to find out how many tablets of 12.5mg would we need per dose.

1 dose is 25 mg and the tablets are in 12.5 mg form.

1 dose = \dfrac{25mg}{12.5mg} = 2

That would mean you would need 2 tablets per dose.

Next you need to calculate how many times a day it needs to be taken. A day has 24 hours and it needs to be taken every 6 hours.  Just divide 24 hours by 6 hours. So that would mean that it needs to be taken 4 times a day.

Next we need to see how many times a week it should be taken and you can get that by multiplying the number of times a day by the number of days a week.

4 x 7 = 28 times

Lastly, you multiply the number of times a week by the number of tablets per dose.

28 times a week x 2 tablets = 56 tablets.

For the second part:

12.5 mg/5mL

The needed dose is 25 mg so we need to find how many mL is needed for 25 mg. 12.5mg is only have of 25 mg we need to double it to attain the correct dosage.

\dfrac{12.5mg}{5mL} x \dfrac{2}{2} = \dfrac{25mg}{10mL}

This means that for every 25 mg, you will need to give 10mL.

Again we do the same procedure as the first to decide how much liquid Benadryl you need to give in a week. We know that based on the previous that we need to administer this 28 times a week, so just multiply the number of mL per dose by the number of times per week.

10mL x 28 = 280mL

4 0
3 years ago
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