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Karo-lina-s [1.5K]
3 years ago
14

Pennies are packaged 50 in a roll. A mother gave her son 161 pennies for his bank and she had 39 pennies left over. How many rol

ls of pennies did she use? 6 rolls 5 rolls 7 rolls 4 rolls
Mathematics
2 answers:
Kisachek [45]3 years ago
7 0
She used 4 rolls or pennies.
yulyashka [42]3 years ago
5 0
4 rolls is the answer
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A festival charges $3 for child admission and $5 for adult admision. At the end of the festival they have sold 779 tickets for a
lutik1710 [3]

Answer:

562 child tickets were sold

217 adult tickets were sold

Step-by-step explanation:

A festival charges $3 for children admission and $5 for adult admission

At the end of the festival they have sold a total number of 779 tickets for $2771

Let x represent the child ticket

Let y represent the adult ticket

x + y= 779..............equation 1

3x + 5y= 2771..........equation 2

From equation 1

x + y = 779

x= 779 -y

Substitute 779-y for x in equation 2

3x + 5y= 2771

3(779-y) + 5y= 2771

2337 - 3y + 5y= 2771

2337 +2y= 2771

2y= 2771 -2337

2y = 434

y = 434/2

y = 217

Substitute 217 for y in equation 1

x + y= 779

x + 217= 779

x = 779-217

x= 562

Hence 562 child tickets were sold and 217 adult tickets were sold

6 0
4 years ago
Imagina que vas a un partido de béisbol con tus amigos, y tienen hambre. El costo de dos botellas de agua y 3 bolsas de palomita
Rudik [331]

Answer:

El costo de una botella de agua es de $10

El costo de una bolsa de palomitas de maíz es de $15.

Step-by-step explanation:

Los parámetros dados son;

El costo de dos botellas de agua y 3 bolsas de palomitas de maíz = $65

El costo de 4 botellas de agua y 1 bolsa de palomitas de maíz = $55

Donde x = El costo de una botella de agua ey = El costo de una bolsa de palomitas de maíz, tenemos;

2 × x + 3 × y = 65 ... (1)

4 × x + y = 55 ... (2)

Haciendo y el tema de ambas ecuaciones, tenemos;

Para la ecuación (1), tenemos;

2 · x + 3 · y = 65

3 · y = 65 - 2 · x

y = 65/3 - 2/3 · x

Para la ecuación (2), tenemos;

4 · x + y = 55

y = 55 - 4 · x

Igualando ambos valores de y para encontrar la solución común, tenemos;

65/3 - 2/3 · x = 55 - 4 · x

4 · x - 2/3 · x = 55 - 65/3

10 · x / 3 = 100/3

∴ 10 · x = 100

x = 100/10 = 10

x = 10

El costo de una botella de agua = x = $10

y = 55 - 4 · x = 55 - 4 × 10 = 55 - 40 = 15

y = 15

El costo de una bolsa de palomitas de maíz = y = $15

4 0
3 years ago
What is 90times345 need it now
Ivanshal [37]
90*345=
31050
Hope i helped.
6 0
4 years ago
Read 2 more answers
What is the answer of question 1
jeyben [28]

Answer: don't know sorry

Step-by-step explanation:

7 0
3 years ago
&lt;x and &lt;y are supplementary angles.&lt;y measures 97° what is the measurement for &lt;x?<br>​
Ilia_Sergeevich [38]

Answer:

It’s 83 degrees

Step-by-step explanation:

180-97=83, it’s 180 because 180 is a supplementary angle.

4 0
4 years ago
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