3 years ago

Name a pair of perpendicular lines

Mathematics

1 answer:

lesantik [10]3 years ago

8 0

Answer:

90 degree angled lines

Step-by-step explanation:

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400 is 75% of what number?

spin [16.1K]

Answer:

534

Step-by-step explanation:

3 0

2 years ago

Can someone please help I don’t get this

VikaD [51]

Answer:

mABC = 110

Step-by-step explanation:

4 0

2 years ago

john is knitting a blanket. he records the length he knits each day. how many more inches does john need to knit so the blanket

sammy [17]

Answer:

60 - 16 = 44

He has to knit 44 more inches so the blanket is 6o inches long.

Hope this helps <3

6 0

3 years ago

Una maquina que fabrica tornillos produce un 3% de piezas defectuosas. Si hoy se han apartado 51 tornillos defectuosos cuantos t

grin007 [14]

Answer:

1700 tornillos

Step-by-step explanation:

Dado que la máquina produce un 3% de tornillos defectuosos en un día. Produjo 51 tornillos defectuosos en un día.

Deje que el número total de tornillos producidos ese día sea x

Por lo tanto;

3% de x = 51

3/100 * x = 51

x = 51 * 100/3

x = 1700 tornillos

7 0

2 years ago

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

Ilia_Sergeevich [38]

Answer: 220

Step-by-step explanation:

Children (x): $2

Teens (y): $3, $\frac{3}{4}x$

Adults: (z): $5

Quantity: x + y + z = 570 ⇒ x + $\frac{3}{4}x$ + z = 570 ⇒ 1.75x + z = 570

Cost: 2x + 3y + 5z = 1950 ⇒ 2x + 3 $(\frac{3}{4}x)$ + 5z = 1950 ⇒ 2x + 2.25x + 5z = 1950 ⇒ 4.25x + 5z = 1950

Qty: 1.75x + z = 570 → 5(1.75x + z = 570) → 8.75x + 5z = 2850

Cost: 4.25x + 5z = 1950 → -1(4.25x + 5z = 1950 → -4.25x - 5z = -1950

4.50x = 900

x = 200

Teens (y): $\frac{3}{4}x$

y = $\frac{3}{4}(200)$

= $\frac{600}{4}$

= 150

Quantity: x + y + z = 570

200 + 150 + z = 570

350 + z = 570

z = 220

6 0

2 years ago