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3 years ago

What is the value of -4(9+6)

Mathematics

2 answers:

Ghella [55]3 years ago

5 0

Answer:

-60

Step-by-step explanation:

Ronch [10]3 years ago

4 0

Answer:

-60

Step-by-step explanation:

-4(9 + 6)

9 + 6 = 15

-4(15) = - 4 ×15 = - 60

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At the county fair, the Baxter family bought 6 hot dogs and 4 juice drinks for $16.70. The Farley family bought 3 hot dogs and 4

Lana71 [14]

Answer: H- hot dogs

J- juice box

6h+4j=16.70

3h+4j=10.85

Elimination:

-6h-4j=-16.70

3h+4j=10.85

-3h=-5.85

H= 1.95

3(1.95)+4j=10.85

5.85+4j=10.85

4j=5

J=1.25

1.95 dollars for a hotdog and 1.25 dollars for a juice box

Step-by-step explanation:

3 0

2 years ago

What is the volume of 22.5 g of metal with a density of 2.81 g/cm

xz_007 [3.2K]

Answer:V = 72.1 cm³ - 50.0 cm³ = 22.1 cm³

D = mV=99.7g22.1cm³ = 4.51 g/cm³

Step-by-step explanation:

d = mV

m = d×V

V = md

DENSITY

Density is defined as mass per unit volume.

d = mV

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d = mV = 433g200cm³ = 2.16 g/cm³

MASS

d = mV

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL × 1.11g1mL = 555 g

VOLUME

d = mV

We can rearrange this to get the expression for the volume.

V = md

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg × 1000g1kg = 14 830 g

Step 2: Calculate the volume.

V = md = 14 830 g × 1cm³19.32g = 767.6 cm³

7 0

3 years ago

A tree casts a shadow that is 125 ft. At the same time, a 4ft tall person

jekas [21]

Answer:

100ft

Step-by-step explanation:

H over S

H over 125 then 4 over 5

cross Multiply would give you

5H = 500

500 ÷ 5 is 100

6 0

3 years ago

If there is 7018 mm, what is the metric unit for 7.018?

Allushta [10]

It's (m) Meters. Hope this helped you! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

4 0

2 years ago

White raven [17]

The ratio of the volume of pipe a to the volume of pipe b is 27:1 .

<h3>What is cylinder?</h3>

A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder.

Given that,

Radius of pipe a is 6 cm, and the radius of pipe b is 2 cm.

We know that the volume of cylinder is :- $\pi r^{2}h$

where r is radius and h is height of the cylinder.

If two figures are similar then ratio of volume is equal to the cube of any dimension.

The ratio of the volume of Pipe a to the volume of Pipe b :-

$\frac{V(a)}{V(b)}=\frac{6^{3} }{2^{3} }$

= $\frac{27}{1}$

Hence, The ratio of the volume of pipe a to the volume of pipe b is 27:1 .

To learn more about cylinder from the given link:

brainly.com/question/1392572

#SPJ4

7 0

1 year ago