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4 years ago

A painter mixed

Mathematics

1 answer:

NISA [10]4 years ago

8 0

I do not know it I have been trying to solve it but I cant

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5x-5 / x-2 = 1/3 solve for x

Alja [10]

Step-by-step explanation:

hope this will help you.

6 0

3 years ago

Help plz.....................

bonufazy [111]

Answer:

Step-by-step explanation:

Remark

The trick here is convert what you have to Ax + By = C

Solution

Given

y - 3 = 1/2 ( x + 6) Multiply both sides by 2

Solve

2(y - 3) = 2 * 1/2 (x + 6) Do the multiplication
2(y - 3) = x + 6 Remove the brackets
2y - 6 = x + 6 Add 6 to both sides.
2y - 6 + 6 = x + 6 + 6 Combine
2y = x + 12 Subtract x from both sides.
-x + 2y = x - x + 12 Combine
-x + 2y = 12

Answer

A = - 1
B = 2
C = 12

When you multiply through by - 1 you get x - 2y = - 12 which is A

7 0

3 years ago

Help me, Don't spam

Anuta_ua [19.1K]

QuestioN:

A container in the shape of of a frustum of a cone having diameters of its two circular faces as 35 cm and 30 cm and vertical height 14 cm, is completely filled with oil. if each of oil has mass 1.2 g, then find the cost of oil in the container if it costs $ 40 per kg.

${\large{\frak{\pmb{\underline{ Clearly,\:we\: have}}}}}$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\bullet\:r = \bf\dfrac{30}{2}\:cm=15\:cm$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\bullet\:R = \bf\dfrac{35}{2}\:cm=17.5\:cm$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\bullet\:h = 14\:cm$

$\:\:\:\:\:\:\:\:\:\:━━━━━━━━━━━━━━━━━━━━$

$\:$

${\bold { \underline{\small{Now,}}}}$

$\:\:\large{\ddagger}\underline {\footnotesize{\boxed{\frak{Volume_{(container)}={\frak{\orange{\bigg\{\bf\dfrac{1}{3}\pi (R^2+r^2+Rr)h\bigg\}cu}}}}}}}$

$\:\:$

$\:$

$\sf {\scriptsize\Bigg[\bf\dfrac{1}{3}\times \bf\dfrac{22}{7}\times\Bigg\{\bigg(\dfrac{35}{2}\bigg)^2+(15)^2+\dfrac{35}{2}\times 15\Bigg\}\times 14 \Bigg]cm^3}$

$\:\:$

$\:$

$\sf \:\:\:\:\:\rightarrowtail\: \dfrac{44}{3}\times\bigg(\dfrac{1225}{4}+225+\dfrac{525}{2}\bigg)cm^3$

$\:\:$

$\:$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\rightarrowtail\: \bigg( \dfrac{44}{3}\times \dfrac{3175}{4}\bigg)cm^3$

$\:\:$

$\:$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\rightarrowtail\: \bigg( \dfrac{3175 \times 11}{3}\bigg)cm^3$

$\:\:$

$\:$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\small{\underline{\mathcal{\red{Mass\:of\:1\:cm^3\:of\:oil\:=\:1.2\:g }}}}$

$\:\:$

$\:$

$\:\:\:\:\:\:\:\sf \footnotesize{Mass_{(oil\:in\:the\: container)}=\bigg( \dfrac{3175 \times 11}{3}\times1.2 \bigg)\:g}$

$\:\:$

$\:$

$\sf\:\:\:\:\:\:\:\:\rightarrowtail\:\bigg( \dfrac{3175 \times 11}{3}\times\dfrac{12}{10}\times\dfrac{1}{1000}\bigg)\:kg$

$\:\:$

$\:$

$\sf \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\rightarrowtail\:\dfrac{1397}{100}\:kg\:=13.97\:kg$

$\:\:$

$\:$

$\bf\twoheadrightarrow$ Cost of oil at $40 per kg = $(13.97×40) $\:\:=\:\large{\underline{\mathcal{\purple{\$\:558.80.}}}}$

8 0

3 years ago

Can someone help me out --x-3>-1

Sunny_sXe [5.5K]

So -x-3>-1
add x to both sides
-3>-1+x
add 1 to both sides
-2>x
so x is any number less than -2 but not including -2

6 0

3 years ago

I need help!! thank you

Alik [6]

Answer:

A. 1 You are rounding down so the 1.2 is rounded to 1.

Step-by-step explanation:

5 0

3 years ago