All categories

2 years ago

This question is worth 20 points and I will mark brainliest

Mathematics

1 answer:

lapo4ka [179]2 years ago

6 0

Answer:

2(3h+7)

=6h+14

6h+7+7 (True)

3h+3h+14 (True)

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A study show that there are 16 vehicles for every 10 households how many vehicles are there for 107 million households

Lisa [10]

$\bf \begin{array}{ccll}
vehicles&households\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
16&10\\
v&107E6
\end{array}\implies \cfrac{16}{v}=\cfrac{10}{17E6}\implies \cfrac{17E6\cdot 16}{10}=v$

just to clarify the engineering notation, E6 is just 1 and 6 zeros, or a million, thus, 107,000,000 is just 107E6.

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2 years ago

Vince can mop a floor in 30 minutes. Annie can mop the same floor in 45 minutes. How long would it take them to mop the floor if

amid [387]

Answer: 15 i think

Step-by-step explanation: not sure

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3 years ago

A system of two equations is shown below. What will you need to multiply the

irga5000 [103]

Answer:

the right answer is : -3

Step-by-step explanation:

$\left \{ {{x+y=4} \atop {3x+4y=14}} \right. \\\left \{ {{-3(x+y)=-3*4} \atop {3x+4y=14}} \right. \\\left \{ {{-3x-3y=-12} \atop {3x+4y=14}} \right. \\\left \{ {{-3x-3y+3x+4y=2} \atop {3x+4y=14}} \right. \\\left \{ {{-3y+4y=2} \atop {3x+4y=14}} \right. \\\left \{ {{y=2} \atop {3x+4*2=14}} \right. \\\left \{ {{y=2} \atop {3x=14-8=6}} \right. \\\left \{ {{y=2} \atop {x=\frac{6}{3}=2 }} \right.$

3 0

2 years ago

Solve x = 4p + p3 if p=dy/dx

MAVERICK [17]

Answer:

x = pp12 or 12 pp

Step-by-step explanation:

Just to note that pp means p square

3 0

2 years ago

X, Y and Z are three points on a map. Y is 43km and on a bearing of 041° from X. Z is 67km and on a bearing of 117° from X. Calc

Helen [10]

Answer:

70.3km

Step-by-step explanation:

When the bearings are visualized and the points connected as a triangle, The angle x would be the difference of the both bearings from x

i.e 117-41 = 76

Using cosine rule,

YZ²= 43² + 67² - 2 x 43 x 67

cos76

YZ= √4944

= 70.3

8 0

2 years ago