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Lady bird [3.3K]

3 years ago

7

according to the Food and Drug Administration, the recommended daily intake of iron is 18 mg. This is 4 less than twice the reco

mmended daily intake of zinc. What is recommended daily intake of zinc

1 answer:

Law Incorporation [45]3 years ago

6 0

The intake of zinc would be 11

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There are 80 major sources of pollen in state A. These pollen sources are categorized as grasses, weeds, and trees. If the numb

Oxana [17]

Answer:

Grasses: 12

Weeds: 29

Trees: 39

Step-by-step explanation:

Let G, W and T represent number of grasses, weeds, and trees that are major pollen sources.

We have been given that there are 80 major sources of pollen in state A. We can represent this information in an equation as:

$G+W+T=80...(1)$

We are told that the number of weeds is 7 less than thrice the number of grasses. We can represent this information in an equation as:

$W=3G-7...(2)$

We are also told that the number of trees is 3 more than thrice the number of grasses. We can represent this information in an equation as:

$T=3G+3...(3)$

Upon substituting equation (2) and equation (3) in equation (1), we will get:

$G+3G-7+3G+3=80$

$7G-4=80$

$7G-4+4=80+4$

$7G=84$

$\frac{7G}{7}=\frac{84}{7}$

$G=12$

Therefore, there are 12 grasses that are major pollen sources.

Number of weeds that are major pollen sources:

$W=3G-7\Rightarrow 3(12)-7=36-7=29$

Therefore, there are 29 weeds that are major pollen sources.

Number of trees that are major pollen sources:

$T=3G+3\Rightarrow 3(12)+3=36+3=39$

Therefore, there are 39 trees that are major pollen sources.

6 0

3 years ago

Find the length of the missing side of the right triangle. 19 a 15.2

diamong [38]

The length of the missing side of the triangle is 129.96

<h3>Right angle triangle</h3>

Right angle triangle are triangle that has one of its sides as 90 degrees. The sides can be found using Pythagoras theorem. Therefore,

c² = a² + b²

where

c = hypotenuse

a and b are the other legs.

Therefore,

19² - 15.2² = a²

a = 361 - 231.04

a = 129.96

learn more on right triangle here: brainly.com/question/20795478

8 0

3 years ago

Expand ( 4 x − 4 ) ( x − 3 )

Kisachek [45]

4x^2-16x+12 is the answer.

4 0

4 years ago

Someone help please

GarryVolchara [31]

C.
4 (x+7) = 38 represents the tape diagram correctly.

8 0

3 years ago

Read 2 more answers

Carrie is looking for a job cutting hair. One option is self-employment at The Belmont Salon, where she would pay $438 per month

DochEvi [55]

Answer:

She would have to do 219 haircuts in a month for the costs to be the same, which would be $428.

Step-by-step explanation:

To find this we take the costs of the first place.

$438

Next we can look at the costs of the second place using x as the number of haircuts she'd do.

2x

Now we can set the two equal to each other to find the number of cuts.

438 = 2x

219 = x

8 0

3 years ago