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3 years ago

Use the data you’ve found up to this point to fill in the final column

Mathematics

2 answers:

Svet_ta [14]3 years ago

5 0

The value c is 19.2

The value d is 160-x

Explanation:

To find the value of c, we need to subtract the original value and the removed value.

Thus,

c = Original - Removed

Let us substitute the value of original and removed from the table.

Thus,

$c = 19.2-0=19.2$

Thus, the value of c is 19.2

To find the value of d, we need to subtract the original value and the removed value.

Thus,

d = Original - Removed

Let us substitute the value of original and removed from the table.

Thus,

$d=160-x$

Thus, the value of d is 160-x

Eduardwww [97]3 years ago

3 0

Answer:

c = 19.2

d = 160-x

Set up the equation, relating the new ratio of salt to solution to the desired 20% salt solution.

A: 19.2/(160 - x) = 20/100

Step-by-step explanation:

correct on edg. Good Luck!!!

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Pani Natalia kupiła 30 kg jabłek za 75 zł i 16 kg ogórków za 104 zł. Oddała sąsiadce 2/5 (dwie piąte) jabłek i 2/5 ogórków. Jaka

adell [148]

Answer:

Correct choice is A

Step-by-step explanation:

Natalia bought 30 kg of apples that cost 75 zl. Then $\dfrac{2}{5}$ of apples costed

$\dfrac{2}{5}\cdot 75=2\cdot 15=30\ zl.$

Natalia bought 16 kg of cucumbers that cost 104 zl. Then $\dfrac{2}{5}$ of cucmbers costed

$\dfrac{2}{5}\cdot 104=2\cdot 20.8=41.6\ zl.$

Then the total cost is

$30+41.6=71.6\ zl.=71\ zl\ 60\ gr.$

6 0

3 years ago

Question 72 true or false

nalin [4]

Answer:

True

m∠T = 40.4°

Step-by-step explanation:

We know all the sides of the triangle but we do not know any of its angles.

To find out if the angle T = 40.4 ° we use the cosine theorem.

According to the cosine theorem:

$c^2=a^2 +b^2-2abcos(\alpha)$

Where $\alpha$ is the angle between a and b.

In this case:

$\alpha = T\\\\a= 11\\\\b=13\\\\c= 8.5$

Then we clear α from the formula and verify that it is equal to 40.4 °

$8.5^2 =11^2 + 13^2 -2(11)(13)cos(\alpha)\\\\8.5^2 -11^2 - 13^2= -2(11)(13)cos(\alpha)\\\\-8.5^2 +11^2 + 13^2= 2(11)(13)cos(\alpha)\\\\\frac{-8.5^2 +11^2 + 13^2}{2(11)(13)}=cos(\alpha)\\\\\alpha=arcos(\frac{-8.5^2 +11^2 + 13^2}{2(11)(13)})\\\\\alpha = 40.4\° =T$

6 0

3 years ago

You have 80 grams of a radioactive kind of vanadium. How much will be left after 48 days if it’s half-life is 16 days?

Tresset [83]

10 grams Vanadium will be left after 48 days

Further explanation:

Half-life is the time after which the chemical is reduced to half.

The reaming mass after half life is given by:

$mass\ fater\ half\ life=\frac{Original\ mass}{2}$

The formula for calculating the remaining mass after given time period is:

$Remaining\ substance=\frac{1}{2^n}*mass$

Here n is the number of half lives passed

Now,

Given

Mass=80 grams

Time= 48 days

Half-life = 16 days

The number of half lives will be:

$n=\frac{48}{16}=3$

Putting the values of n and mass in the formula

$Remaining\ substance=\frac{1}{2^3}*80\\=\frac{1}{8}*80\\=10\ grams$

10 grams Vanadium will be left after 48 days

Keywords: Half-life, radioactive

Learn more about half-life calculation at:

#LearnwithBrainly

6 0

3 years ago

The graph of the function f(x) = ax2 + bx +c (where a, b, and c are real and nonzero) has two x-intercepts. Explain how to find

Olin [163]

-b/2a is the formula to find the vertex of a parabola. If one of the intercepts is at (-b/2a + 3, 0), the other one must be at (-b/2a - 3, 0), since the two x-intercepts have to be the same distance from the vertex.

7 0

4 years ago

Read 2 more answers

In the following figure (AB) ∥(CD). Suppose that m∠1=32°. What is the measure of the other seven angles? Explain Your Reasoning.

NISA [10]

Answer:

I'm good with you do not have a

Step-by-step explanation:

because I only want the points lol

3 0

3 years ago