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3 years ago

HELP ASAP

Mathematics

2 answers:

kari74 [83]3 years ago

8 0

Answer:

2. 4a+2c = 5000

4. a + c = 1600

Step-by-step explanation:

Rama09 [41]3 years ago

3 0

Answer:

2.) 4a+2c=5,000

4.) a+c=1,600

Step-by-step explanation:

4 times a(adults) plus 2 times c(children)=5,000

4 is from $4 per adult(a) and 2 is from $2 per children(c).

a+c=1,600

You can add the number of adults and children to find the answer.

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Natalie walk 3/5 mile and a 1/2 hour . how fast did she walk in in miles per hour?

djverab [1.8K]

Since she walked 3/5 mile in half a hour, we must multiply it by 2 to find mph.

3/5*2 = 6/5 = 1 1/5. Hope this helps!

3 0

3 years ago

Read 2 more answers

Need answer ASAP *MARKING BRAINLIEST

ICE Princess25 [194]

Answer:

y = -2x + 1

Step-by-step explanation:

To find slope, you need to use the formula:

m = $\frac{y_{2}- y_{1} }{x_{2} -x_{1} }$

Plug in the numbers accordingly:

m = $\frac{-3-3 = -6}{2 +1 = 3}$

m = $\frac{-6}{3}$

Simplify:

m = -2

To find the y-intercept, you need to plug in one of the coordinates (doesn't matter which one) into the equation:

Coordinate : (-1, 3)

3 = -2(-1) + b

3 = 2 + b

Subtract 2 from both sides:

3 = 2 + b

-2 -2

________

1 = b

Put it all together:

y = -2x + 1

6 0

3 years ago

A company makes 3 types of cable. cable a requires 3 black, 3 white, and 2 red wires. b requires 1 black, 2 white, and 1 red wir

BabaBlast [244]

Let
x = the number of a-cables
y = the number of b-cables
z = the number of c-cables

Cable a uses 3 black, 3 white and 2 red wires.
Cable b uses 1 black, 2 white and 1 red wire.
Cable c uses 2 black, 1 white and 2 red wires.

Because 120 black, 110 white and 100 red wires were used, therefore the system of equations is
3x + y + 2z = 120 (1)
3x + 2y + z = 110 (2)
2x + y + 2z = 100 (3)

Answer:
3x + y + 2z = 120
3x + 2y + z = 110
2x + y + 2z = 100

where
x,y,z = the number of a, b and c-cables respectively.

3 0

3 years ago

Need answer quick please! Thank you

Fantom [35]

6 is the answer. 3(6-14)/-4 = 3(-8)/-4 = 3(-2) = -6.
Hope this helps, and have a great day!

8 0

4 years ago

Read 2 more answers

Please help im so stuck on this !!!!!!!!n

Makovka662 [10]

Answer:

Step-by-step explanation:

4) d = 12 cm; r = 12/2 = 6cm ; h = 5 cm

S.A = 2πr(r + h)

= 2* 3.14 * 6 * (6 + 5)

= 2 * 3.14 * 6 *11

= 414.48 cm²

5) d = 8 cm ; r = 8/2 = 4cm ; h = 7cm

S.A = 2πr(r + h)

= 2 *3.14 * 4 * (4 + 7)

= 2 * 3.14 * 4 * 11

= 276.32 cm²

6) r = 4 cm ; h = 6cm

SA = 2πr(r +h)

= 2 * 3.14 * 4 * 10

= 251.2 cm²

7) Area of front and back = $2*\frac{1}{2}*base * height$

= base * height

SA = (front and back) + Base + left + right

= 4* 3 + (8*3) + (8*4) + ( 8*5)

= 12 + 24 + 32 + 40

= 108 cm²

8) SA = (front and back) + Base + left + right

= (8 * 6) + (12*6) + (12*8) + (12*10)

= 48 + 72 + 96 + 120

= 336 cm²

9) SA = (front and back) + Base + left + right

= (12 *5) + (8*5) + (8*12) +(8*13)

= 60 + 40 + 96 + 104

= 300 cm²

5 0

3 years ago