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3 years ago

A 12 ounce box of cereal cost $.84 how many ounces should be in a box marked $.49

Mathematics

2 answers:

OLga [1]3 years ago

8 0

Answer:

7 ounces

Step-by-step explanation:

if 12 ounces is $0.84, that means it is $0.07 per ounce. if you have $.49, you divide .49 and 0.07 and you will get 7 ounces

Vlada [557]3 years ago

8 0

Answer: 7

Step-by-step explanation:

Rule of 3. Let's put the ounces on the left side and the price on the right side.

$\frac{12}{x}=\frac{0.84}{0.49}\\$

$x=\frac{(12)(0.49)}{0.84} \\x=7 ounces$

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On an algebra test , the highest grade was 50 points higher than the lowest the sum of the two grades was 122 find the lowest gr

KATRIN_1 [288]

Answer:

Highest grade: 86

Lowest grade: 36

Step-by-step explanation:

Let the highest grade be h, lowest grade be l.

$h = 50 + l \\ \\ h + l = 122 \\ h = 122 - l \\ \\$

Therefore,

$122 - l \: = 50 + l \\ 2l \: = 72 \\ l = 36 \\ \\ h = 36 + 50 = 86$

6 0

3 years ago

the volume of a cylindrical tank is 936cubic meter. if its height is 6 meter determine the base area of the tank

vladimir2022 [97]

Answer:

156 square m

Step-by-step explanation:

$volume \: of \: cylindrical \: tank \\ = area \: of \: base \times height \\ \\ 936 = area \: of \: base \times \: 6 \\ \\ area \: of \: base = \frac{936}{6} \\ \\ area \: of \: base = 156 \: {m}^{2}$

6 0

3 years ago

X to the second power + 6x - 7 = 0

velikii [3]

X can equal -7 or 1
X = -7 and 1

6 0

3 years ago

Given that fx=2x2-4x+1, then f(-1)is.

oksian1 [2.3K]

Answer:

$f(-1)=7$

Step-by-step explanation:

I am going to assume your question meant the equation

$f(x)=2x^{2} -4x+1$

So $f(-1)$ can be found by substituting all the x terms in the equation with -1

$f(-1)=2(-1)^{2} -4(-1)+1$

And simplifying for our answer

$f(-1)=2(1)+4+1$

$f(-1) = 2+4+1$

$f(-1)=7$

5 0

3 years ago

Need help please and show work

Aloiza [94]

3z + 6
3z and 6 has greatest common factor, that is 3. Divide 3z and 6 by the greatest common factor (3).
3z ÷ 3 = z
6 ÷ 3 = 2

So, we could work on the expression as following.
3z + 6
= 3 × z + 3 × 2

From the expression above, we should separate 3 from z and 2 by a parenthesis to make distributive property.
3 × z + 3 × 2
= 3(z + 2)

SUMMARY
3z + 6
= 3 × z + 3 × 2
= 3(z + 2)

7 0

3 years ago