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3 years ago

A hardware store sells 3 litre cans of paint for €36 and 5 litre cans of paint for €48. In one day the

Mathematics

1 answer:

Tanya [424]3 years ago

8 0

3+5+71=79 cans of paint

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If 5 years ago nina was twice as old as sam, how soon from now will she be 1.5 times as old as sam? if x is sam's age 5 years ag

Anna35 [415]

I hope this helps you

7 0

3 years ago

Consider the initial value problem y'' + 49 y = cos(7t), y(0) = 9, y'(0) = 6. a. Take the Laplace transform of both sides of the

choli [55]

Answer:

35/49/50

Step-by-step explanation:

3.5/7.8/4.9=50

3 0

3 years ago

What is the solution of the system?

Kryger [21]

Greetings!

Solve the System, using Elimination:
$\left \{ {{4x+2y=18} \atop {2x+3y=15}} \right.$

Multiply Equation #2 by 2:
$\left \{ {{4x+2y=18} \atop {2(2x+3y)=2(15)}} \right.$

$\left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.$

Eliminate variable x:
$-\frac{ \left \{ {{4x+2y=18} \atop {4x+6y=30}} \right.}{0x-4y=-12}$

$4y=-12$

Divide both sides by 4:
$\frac{4y}{4}= \frac{12}{4}$

$y=3$

Input this value into one of the Equations:
$4x+2y=18$

$4x+2(3)=18$

Simplify:
$4x+6=18$

$(4x+6)+(-6)=(18)+(-6)$

$4x=12$

Divide both sides by 4.
$\frac{4x}{4}= \frac{12}{4}$

$x=3$

The Solution to this System (The Point of Intersection):
$\boxed{(3,3)}$

I hope this helped!
-Benjamin

7 0

3 years ago

Does anyone know the answer

Alex_Xolod [135]

Answer:x = 12,5

using thales's theorem, we have:

$\frac{15}{15+36}=\frac{20}{6x-7}\\\\ 6x-7=\frac{20.(15+36)}{15}=68\\\\x = \frac{68+7}{6}=12.5$

Step-by-step explanation:

8 0

3 years ago

What is eighteen lots of twelve?

djyliett [7]

Answer:

216

Step-by-step explanation:

Lots of means multiplication so:

18 × 12 = 216

HOPE THIS HELPED

7 0

3 years ago